/
ExpressionParserSuite.scala
867 lines (747 loc) · 34.5 KB
/
ExpressionParserSuite.scala
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.sql.catalyst.parser
import java.sql.{Date, Timestamp}
import java.time.LocalDateTime
import java.util.concurrent.TimeUnit
import scala.language.implicitConversions
import org.apache.spark.sql.catalyst.FunctionIdentifier
import org.apache.spark.sql.catalyst.analysis.{UnresolvedAttribute, _}
import org.apache.spark.sql.catalyst.expressions._
import org.apache.spark.sql.catalyst.expressions.aggregate.{First, Last}
import org.apache.spark.sql.catalyst.util.{DateTimeTestUtils, IntervalUtils}
import org.apache.spark.sql.catalyst.util.IntervalUtils.IntervalUnit._
import org.apache.spark.sql.internal.SQLConf
import org.apache.spark.sql.internal.SQLConf.TimestampTypes
import org.apache.spark.sql.types._
import org.apache.spark.unsafe.types.{CalendarInterval, UTF8String}
/**
* Test basic expression parsing.
* If the type of an expression is supported it should be tested here.
*
* Please note that some of the expressions test don't have to be sound expressions, only their
* structure needs to be valid. Unsound expressions should be caught by the Analyzer or
* CheckAnalysis classes.
*/
class ExpressionParserSuite extends AnalysisTest {
import org.apache.spark.sql.catalyst.dsl.expressions._
import org.apache.spark.sql.catalyst.dsl.plans._
implicit def stringToUTF8Str(str: String): UTF8String = UTF8String.fromString(str)
val defaultParser = CatalystSqlParser
def assertEqual(
sqlCommand: String,
e: Expression,
parser: ParserInterface = defaultParser): Unit = {
compareExpressions(parser.parseExpression(sqlCommand), e)
}
private def intercept(sqlCommand: String, messages: String*): Unit =
interceptParseException(defaultParser.parseExpression)(sqlCommand, messages: _*)
def assertEval(
sqlCommand: String,
expect: Any,
parser: ParserInterface = defaultParser): Unit = {
assert(parser.parseExpression(sqlCommand).eval() === expect)
}
test("star expressions") {
// Global Star
assertEqual("*", UnresolvedStar(None))
// Targeted Star
assertEqual("a.b.*", UnresolvedStar(Option(Seq("a", "b"))))
}
// NamedExpression (Alias/Multialias)
test("named expressions") {
// No Alias
val r0 = 'a
assertEqual("a", r0)
// Single Alias.
val r1 = 'a as "b"
assertEqual("a as b", r1)
assertEqual("a b", r1)
// Multi-Alias
assertEqual("a as (b, c)", MultiAlias('a, Seq("b", "c")))
assertEqual("a() (b, c)", MultiAlias('a.function(), Seq("b", "c")))
// Numeric literals without a space between the literal qualifier and the alias, should not be
// interpreted as such. An unresolved reference should be returned instead.
// TODO add the JIRA-ticket number.
assertEqual("1SL", Symbol("1SL"))
// Aliased star is allowed.
assertEqual("a.* b", UnresolvedStar(Option(Seq("a"))) as 'b)
}
test("binary logical expressions") {
// And
assertEqual("a and b", 'a && 'b)
// Or
assertEqual("a or b", 'a || 'b)
// Combination And/Or check precedence
assertEqual("a and b or c and d", ('a && 'b) || ('c && 'd))
assertEqual("a or b or c and d", 'a || 'b || ('c && 'd))
// Multiple AND/OR get converted into a balanced tree
assertEqual("a or b or c or d or e or f", (('a || 'b) || 'c) || (('d || 'e) || 'f))
assertEqual("a and b and c and d and e and f", (('a && 'b) && 'c) && (('d && 'e) && 'f))
}
test("long binary logical expressions") {
def testVeryBinaryExpression(op: String, clazz: Class[_]): Unit = {
val sql = (1 to 1000).map(x => s"$x == $x").mkString(op)
val e = defaultParser.parseExpression(sql)
assert(e.collect { case _: EqualTo => true }.size === 1000)
assert(e.collect { case x if clazz.isInstance(x) => true }.size === 999)
}
testVeryBinaryExpression(" AND ", classOf[And])
testVeryBinaryExpression(" OR ", classOf[Or])
}
test("not expressions") {
assertEqual("not a", !'a)
assertEqual("!a", !'a)
assertEqual("not true > true", Not(GreaterThan(true, true)))
}
test("exists expression") {
assertEqual(
"exists (select 1 from b where b.x = a.x)",
Exists(table("b").where(Symbol("b.x") === Symbol("a.x")).select(1)))
}
test("comparison expressions") {
assertEqual("a = b", 'a === 'b)
assertEqual("a == b", 'a === 'b)
assertEqual("a <=> b", 'a <=> 'b)
assertEqual("a <> b", 'a =!= 'b)
assertEqual("a != b", 'a =!= 'b)
assertEqual("a < b", 'a < 'b)
assertEqual("a <= b", 'a <= 'b)
assertEqual("a !> b", 'a <= 'b)
assertEqual("a > b", 'a > 'b)
assertEqual("a >= b", 'a >= 'b)
assertEqual("a !< b", 'a >= 'b)
}
test("between expressions") {
assertEqual("a between b and c", 'a >= 'b && 'a <= 'c)
assertEqual("a not between b and c", !('a >= 'b && 'a <= 'c))
}
test("in expressions") {
assertEqual("a in (b, c, d)", 'a in ('b, 'c, 'd))
assertEqual("a not in (b, c, d)", !('a in ('b, 'c, 'd)))
}
test("in sub-query") {
assertEqual(
"a in (select b from c)",
InSubquery(Seq('a), ListQuery(table("c").select('b))))
assertEqual(
"(a, b, c) in (select d, e, f from g)",
InSubquery(Seq('a, 'b, 'c), ListQuery(table("g").select('d, 'e, 'f))))
assertEqual(
"(a, b) in (select c from d)",
InSubquery(Seq('a, 'b), ListQuery(table("d").select('c))))
assertEqual(
"(a) in (select b from c)",
InSubquery(Seq('a), ListQuery(table("c").select('b))))
}
test("like expressions") {
assertEqual("a like 'pattern%'", 'a like "pattern%")
assertEqual("a not like 'pattern%'", !('a like "pattern%"))
assertEqual("a rlike 'pattern%'", 'a rlike "pattern%")
assertEqual("a not rlike 'pattern%'", !('a rlike "pattern%"))
assertEqual("a regexp 'pattern%'", 'a rlike "pattern%")
assertEqual("a not regexp 'pattern%'", !('a rlike "pattern%"))
}
test("like escape expressions") {
val message = "Escape string must contain only one character."
assertEqual("a like 'pattern%' escape '#'", 'a.like("pattern%", '#'))
assertEqual("a like 'pattern%' escape '\"'", 'a.like("pattern%", '\"'))
intercept("a like 'pattern%' escape '##'", message)
intercept("a like 'pattern%' escape ''", message)
assertEqual("a not like 'pattern%' escape '#'", !('a.like("pattern%", '#')))
assertEqual("a not like 'pattern%' escape '\"'", !('a.like("pattern%", '\"')))
intercept("a not like 'pattern%' escape '\"/'", message)
intercept("a not like 'pattern%' escape ''", message)
}
test("like expressions with ESCAPED_STRING_LITERALS = true") {
withSQLConf(SQLConf.ESCAPED_STRING_LITERALS.key -> "true") {
val parser = new CatalystSqlParser()
assertEqual("a rlike '^\\x20[\\x20-\\x23]+$'", 'a rlike "^\\x20[\\x20-\\x23]+$", parser)
assertEqual("a rlike 'pattern\\\\'", 'a rlike "pattern\\\\", parser)
assertEqual("a rlike 'pattern\\t\\n'", 'a rlike "pattern\\t\\n", parser)
}
}
test("(NOT) LIKE (ANY | SOME | ALL) expressions") {
Seq("any", "some").foreach { quantifier =>
assertEqual(s"a like $quantifier ('foo%', 'b%')", 'a likeAny("foo%", "b%"))
assertEqual(s"a not like $quantifier ('foo%', 'b%')", 'a notLikeAny("foo%", "b%"))
assertEqual(s"not (a like $quantifier ('foo%', 'b%'))", !('a likeAny("foo%", "b%")))
}
assertEqual("a like all ('foo%', 'b%')", 'a likeAll("foo%", "b%"))
assertEqual("a not like all ('foo%', 'b%')", 'a notLikeAll("foo%", "b%"))
assertEqual("not (a like all ('foo%', 'b%'))", !('a likeAll("foo%", "b%")))
Seq("any", "some", "all").foreach { quantifier =>
intercept(s"a like $quantifier()", "Expected something between '(' and ')'")
}
}
test("is null expressions") {
assertEqual("a is null", 'a.isNull)
assertEqual("a is not null", 'a.isNotNull)
assertEqual("a = b is null", ('a === 'b).isNull)
assertEqual("a = b is not null", ('a === 'b).isNotNull)
}
test("is distinct expressions") {
assertEqual("a is distinct from b", !('a <=> 'b))
assertEqual("a is not distinct from b", 'a <=> 'b)
}
test("binary arithmetic expressions") {
// Simple operations
assertEqual("a * b", 'a * 'b)
assertEqual("a / b", 'a / 'b)
assertEqual("a DIV b", 'a div 'b)
assertEqual("a % b", 'a % 'b)
assertEqual("a + b", 'a + 'b)
assertEqual("a - b", 'a - 'b)
assertEqual("a & b", 'a & 'b)
assertEqual("a ^ b", 'a ^ 'b)
assertEqual("a | b", 'a | 'b)
// Check precedences
assertEqual(
"a * t | b ^ c & d - e + f % g DIV h / i * k",
'a * 't | ('b ^ ('c & ('d - 'e + (('f % 'g div 'h) / 'i * 'k)))))
}
test("unary arithmetic expressions") {
assertEqual("+a", +'a)
assertEqual("-a", -'a)
assertEqual("~a", ~'a)
assertEqual("-+~~a", -( +(~(~'a))))
}
test("cast expressions") {
// Note that DataType parsing is tested elsewhere.
assertEqual("cast(a as int)", 'a.cast(IntegerType))
assertEqual("cast(a as timestamp)", 'a.cast(TimestampType))
assertEqual("cast(a as array<int>)", 'a.cast(ArrayType(IntegerType)))
assertEqual("cast(cast(a as int) as long)", 'a.cast(IntegerType).cast(LongType))
}
test("function expressions") {
assertEqual("foo()", 'foo.function())
assertEqual("foo.bar()",
UnresolvedFunction(FunctionIdentifier("bar", Some("foo")), Seq.empty, isDistinct = false))
assertEqual("foo(*)", 'foo.function(star()))
assertEqual("count(*)", 'count.function(1))
assertEqual("foo(a, b)", 'foo.function('a, 'b))
assertEqual("foo(all a, b)", 'foo.function('a, 'b))
assertEqual("foo(distinct a, b)", 'foo.distinctFunction('a, 'b))
assertEqual("grouping(distinct a, b)", 'grouping.distinctFunction('a, 'b))
assertEqual("`select`(all a, b)", 'select.function('a, 'b))
intercept("foo(a x)", "extraneous input 'x'")
}
private def lv(s: Symbol) = UnresolvedNamedLambdaVariable(Seq(s.name))
test("lambda functions") {
assertEqual("x -> x + 1", LambdaFunction(lv('x) + 1, Seq(lv('x))))
assertEqual("(x, y) -> x + y", LambdaFunction(lv('x) + lv('y), Seq(lv('x), lv('y))))
}
test("window function expressions") {
val func = 'foo.function(star())
def windowed(
partitioning: Seq[Expression] = Seq.empty,
ordering: Seq[SortOrder] = Seq.empty,
frame: WindowFrame = UnspecifiedFrame): Expression = {
WindowExpression(func, WindowSpecDefinition(partitioning, ordering, frame))
}
// Basic window testing.
assertEqual("foo(*) over w1", UnresolvedWindowExpression(func, WindowSpecReference("w1")))
assertEqual("foo(*) over ()", windowed())
assertEqual("foo(*) over (partition by a, b)", windowed(Seq('a, 'b)))
assertEqual("foo(*) over (distribute by a, b)", windowed(Seq('a, 'b)))
assertEqual("foo(*) over (cluster by a, b)", windowed(Seq('a, 'b)))
assertEqual("foo(*) over (order by a desc, b asc)", windowed(Seq.empty, Seq('a.desc, 'b.asc)))
assertEqual("foo(*) over (sort by a desc, b asc)", windowed(Seq.empty, Seq('a.desc, 'b.asc)))
assertEqual("foo(*) over (partition by a, b order by c)", windowed(Seq('a, 'b), Seq('c.asc)))
assertEqual("foo(*) over (distribute by a, b sort by c)", windowed(Seq('a, 'b), Seq('c.asc)))
// Test use of expressions in window functions.
assertEqual(
"sum(product + 1) over (partition by ((product) + (1)) order by 2)",
WindowExpression('sum.function('product + 1),
WindowSpecDefinition(Seq('product + 1), Seq(Literal(2).asc), UnspecifiedFrame)))
assertEqual(
"sum(product + 1) over (partition by ((product / 2) + 1) order by 2)",
WindowExpression('sum.function('product + 1),
WindowSpecDefinition(Seq('product / 2 + 1), Seq(Literal(2).asc), UnspecifiedFrame)))
}
test("range/rows window function expressions") {
val func = 'foo.function(star())
def windowed(
partitioning: Seq[Expression] = Seq.empty,
ordering: Seq[SortOrder] = Seq.empty,
frame: WindowFrame = UnspecifiedFrame): Expression = {
WindowExpression(func, WindowSpecDefinition(partitioning, ordering, frame))
}
val frameTypes = Seq(("rows", RowFrame), ("range", RangeFrame))
val boundaries = Seq(
// No between combinations
("unbounded preceding", UnboundedPreceding, CurrentRow),
("2147483648 preceding", -Literal(2147483648L), CurrentRow),
("10 preceding", -Literal(10), CurrentRow),
("3 + 1 preceding", -Add(Literal(3), Literal(1)), CurrentRow),
("0 preceding", -Literal(0), CurrentRow),
("current row", CurrentRow, CurrentRow),
("0 following", Literal(0), CurrentRow),
("3 + 1 following", Add(Literal(3), Literal(1)), CurrentRow),
("10 following", Literal(10), CurrentRow),
("2147483649 following", Literal(2147483649L), CurrentRow),
("unbounded following", UnboundedFollowing, CurrentRow), // Will fail during analysis
// Between combinations
("between unbounded preceding and 5 following",
UnboundedPreceding, Literal(5)),
("between unbounded preceding and 3 + 1 following",
UnboundedPreceding, Add(Literal(3), Literal(1))),
("between unbounded preceding and 2147483649 following",
UnboundedPreceding, Literal(2147483649L)),
("between unbounded preceding and current row", UnboundedPreceding, CurrentRow),
("between 2147483648 preceding and current row", -Literal(2147483648L), CurrentRow),
("between 10 preceding and current row", -Literal(10), CurrentRow),
("between 3 + 1 preceding and current row", -Add(Literal(3), Literal(1)), CurrentRow),
("between 0 preceding and current row", -Literal(0), CurrentRow),
("between current row and current row", CurrentRow, CurrentRow),
("between current row and 0 following", CurrentRow, Literal(0)),
("between current row and 5 following", CurrentRow, Literal(5)),
("between current row and 3 + 1 following", CurrentRow, Add(Literal(3), Literal(1))),
("between current row and 2147483649 following", CurrentRow, Literal(2147483649L)),
("between current row and unbounded following", CurrentRow, UnboundedFollowing),
("between 2147483648 preceding and unbounded following",
-Literal(2147483648L), UnboundedFollowing),
("between 10 preceding and unbounded following",
-Literal(10), UnboundedFollowing),
("between 3 + 1 preceding and unbounded following",
-Add(Literal(3), Literal(1)), UnboundedFollowing),
("between 0 preceding and unbounded following", -Literal(0), UnboundedFollowing),
// Between partial and full range
("between 10 preceding and 5 following", -Literal(10), Literal(5)),
("between unbounded preceding and unbounded following",
UnboundedPreceding, UnboundedFollowing)
)
frameTypes.foreach {
case (frameTypeSql, frameType) =>
boundaries.foreach {
case (boundarySql, begin, end) =>
val query = s"foo(*) over (partition by a order by b $frameTypeSql $boundarySql)"
val expr = windowed(Seq('a), Seq('b.asc), SpecifiedWindowFrame(frameType, begin, end))
assertEqual(query, expr)
}
}
// We cannot use an arbitrary expression.
intercept("foo(*) over (partition by a order by b rows exp(b) preceding)",
"Frame bound value must be a literal.")
}
test("row constructor") {
// Note that '(a)' will be interpreted as a nested expression.
assertEqual("(a, b)", CreateStruct(Seq('a, 'b)))
assertEqual("(a, b, c)", CreateStruct(Seq('a, 'b, 'c)))
assertEqual("(a as b, b as c)", CreateStruct(Seq('a as 'b, 'b as 'c)))
}
test("scalar sub-query") {
assertEqual(
"(select max(val) from tbl) > current",
ScalarSubquery(table("tbl").select('max.function('val))) > 'current)
assertEqual(
"a = (select b from s)",
'a === ScalarSubquery(table("s").select('b)))
}
test("case when") {
assertEqual("case a when 1 then b when 2 then c else d end",
CaseKeyWhen('a, Seq(1, 'b, 2, 'c, 'd)))
assertEqual("case (a or b) when true then c when false then d else e end",
CaseKeyWhen('a || 'b, Seq(true, 'c, false, 'd, 'e)))
assertEqual("case 'a'='a' when true then 1 end",
CaseKeyWhen("a" === "a", Seq(true, 1)))
assertEqual("case when a = 1 then b when a = 2 then c else d end",
CaseWhen(Seq(('a === 1, 'b.expr), ('a === 2, 'c.expr)), 'd))
assertEqual("case when (1) + case when a > b then c else d end then f else g end",
CaseWhen(Seq((Literal(1) + CaseWhen(Seq(('a > 'b, 'c.expr)), 'd.expr), 'f.expr)), 'g))
}
test("dereference") {
assertEqual("a.b", UnresolvedAttribute("a.b"))
assertEqual("`select`.b", UnresolvedAttribute("select.b"))
assertEqual("(a + b).b", ('a + 'b).getField("b")) // This will fail analysis.
assertEqual(
"struct(a, b).b",
namedStruct(Literal("a"), 'a, Literal("b"), 'b).getField("b"))
}
test("reference") {
// Regular
assertEqual("a", 'a)
// Starting with a digit.
assertEqual("1a", Symbol("1a"))
// Quoted using a keyword.
assertEqual("`select`", 'select)
// Unquoted using an unreserved keyword.
assertEqual("columns", 'columns)
}
test("subscript") {
assertEqual("a[b]", 'a.getItem('b))
assertEqual("a[1 + 1]", 'a.getItem(Literal(1) + 1))
assertEqual("`c`.a[b]", UnresolvedAttribute("c.a").getItem('b))
}
test("parenthesis") {
assertEqual("(a)", 'a)
assertEqual("r * (a + b)", 'r * ('a + 'b))
}
test("type constructors") {
def checkTimestampNTZAndLTZ(): Unit = {
// Timestamp with local time zone
assertEqual("tImEstAmp_LTZ '2016-03-11 20:54:00.000'",
Literal(Timestamp.valueOf("2016-03-11 20:54:00.000")))
intercept("timestamP_LTZ '2016-33-11 20:54:00.000'", "Cannot parse the TIMESTAMP_LTZ value")
// Timestamp without time zone
assertEqual("tImEstAmp_Ntz '2016-03-11 20:54:00.000'",
Literal(LocalDateTime.parse("2016-03-11T20:54:00.000")))
intercept("tImEstAmp_Ntz '2016-33-11 20:54:00.000'", "Cannot parse the TIMESTAMP_NTZ value")
}
// Dates.
assertEqual("dAte '2016-03-11'", Literal(Date.valueOf("2016-03-11")))
intercept("DAtE 'mar 11 2016'", "Cannot parse the DATE value")
// Timestamps.
assertEqual("tImEstAmp '2016-03-11 20:54:00.000'",
Literal(Timestamp.valueOf("2016-03-11 20:54:00.000")))
intercept("timestamP '2016-33-11 20:54:00.000'", "Cannot parse the TIMESTAMP value")
checkTimestampNTZAndLTZ()
withSQLConf(SQLConf.TIMESTAMP_TYPE.key -> TimestampTypes.TIMESTAMP_NTZ.toString) {
assertEqual("tImEstAmp '2016-03-11 20:54:00.000'",
Literal(LocalDateTime.parse("2016-03-11T20:54:00.000")))
intercept("timestamP '2016-33-11 20:54:00.000'", "Cannot parse the TIMESTAMP value")
// If the timestamp string contains time zone, return a timestamp with local time zone literal
assertEqual("tImEstAmp '1970-01-01 00:00:00.000 +01:00'",
Literal(-3600000000L, TimestampType))
// The behavior of TIMESTAMP_NTZ and TIMESTAMP_LTZ is independent of SQLConf.TIMESTAMP_TYPE
checkTimestampNTZAndLTZ()
}
// Interval.
val intervalLiteral = Literal(IntervalUtils.stringToInterval("interval 3 month 1 hour"))
assertEqual("InterVal 'interval 3 month 1 hour'", intervalLiteral)
assertEqual("INTERVAL '3 month 1 hour'", intervalLiteral)
intercept("Interval 'interval 3 monthsss 1 hoursss'", "Cannot parse the INTERVAL value")
assertEqual(
"-interval '3 month 1 hour'",
UnaryMinus(Literal(IntervalUtils.stringToInterval("interval 3 month 1 hour"))))
val intervalStrWithAllUnits = "1 year 3 months 2 weeks 2 days 1 hour 3 minutes 2 seconds " +
"100 millisecond 200 microseconds"
assertEqual(
s"interval '$intervalStrWithAllUnits'",
Literal(IntervalUtils.stringToInterval(intervalStrWithAllUnits)))
// Binary.
assertEqual("X'A'", Literal(Array(0x0a).map(_.toByte)))
assertEqual("x'A10C'", Literal(Array(0xa1, 0x0c).map(_.toByte)))
intercept("x'A1OC'")
// Unsupported datatype.
intercept("GEO '(10,-6)'", "Literals of type 'GEO' are currently not supported.")
}
test("literals") {
def testDecimal(value: String): Unit = {
assertEqual(value, Literal(BigDecimal(value).underlying))
}
// NULL
assertEqual("null", Literal(null))
// Boolean
assertEqual("trUe", Literal(true))
assertEqual("False", Literal(false))
// Integral should have the narrowest possible type
assertEqual("787324", Literal(787324))
assertEqual("7873247234798249234", Literal(7873247234798249234L))
testDecimal("78732472347982492793712334")
// Decimal
testDecimal("7873247234798249279371.2334")
// SPARK-29956: Scientific Decimal is parsed as Double by default.
assertEqual("9.0e1", Literal(90.toDouble))
assertEqual(".9e+2", Literal(90.toDouble))
assertEqual("0.9e+2", Literal(90.toDouble))
// Scientific Decimal with suffix BD should still be parsed as Decimal
assertEqual("900e-1BD", Literal(BigDecimal("900e-1").underlying()))
assertEqual("900.0E-1BD", Literal(BigDecimal("900.0E-1").underlying()))
assertEqual("9.e+1BD", Literal(BigDecimal("9.e+1").underlying()))
intercept(".e3")
// Tiny Int Literal
assertEqual("10Y", Literal(10.toByte))
intercept("-1000Y", s"does not fit in range [${Byte.MinValue}, ${Byte.MaxValue}]")
// Small Int Literal
assertEqual("10S", Literal(10.toShort))
intercept("40000S", s"does not fit in range [${Short.MinValue}, ${Short.MaxValue}]")
// Long Int Literal
assertEqual("10L", Literal(10L))
intercept("78732472347982492793712334L",
s"does not fit in range [${Long.MinValue}, ${Long.MaxValue}]")
// Double Literal
assertEqual("10.0D", Literal(10.0D))
intercept("-1.8E308D", s"does not fit in range")
intercept("1.8E308D", s"does not fit in range")
// BigDecimal Literal
assertEqual("90912830918230182310293801923652346786BD",
Literal(BigDecimal("90912830918230182310293801923652346786").underlying()))
assertEqual("123.0E-28BD", Literal(BigDecimal("123.0E-28").underlying()))
assertEqual("123.08BD", Literal(BigDecimal("123.08").underlying()))
intercept("1.20E-38BD", "decimal can only support precision up to 38")
}
test("SPARK-30252: Decimal should set zero scale rather than negative scale by default") {
assertEqual("123.0BD", Literal(Decimal(BigDecimal("123.0")), DecimalType(4, 1)))
assertEqual("123BD", Literal(Decimal(BigDecimal("123")), DecimalType(3, 0)))
assertEqual("123E10BD", Literal(Decimal(BigDecimal("123E10")), DecimalType(13, 0)))
assertEqual("123E+10BD", Literal(Decimal(BigDecimal("123E+10")), DecimalType(13, 0)))
assertEqual("123E-10BD", Literal(Decimal(BigDecimal("123E-10")), DecimalType(10, 10)))
assertEqual("1.23E10BD", Literal(Decimal(BigDecimal("1.23E10")), DecimalType(11, 0)))
assertEqual("-1.23E10BD", Literal(Decimal(BigDecimal("-1.23E10")), DecimalType(11, 0)))
}
test("SPARK-29956: scientific decimal should be parsed as Decimal in legacy mode") {
def testDecimal(value: String, parser: ParserInterface): Unit = {
assertEqual(value, Literal(BigDecimal(value).underlying), parser)
}
withSQLConf(SQLConf.LEGACY_EXPONENT_LITERAL_AS_DECIMAL_ENABLED.key -> "true") {
val parser = new CatalystSqlParser()
testDecimal("9e1", parser)
testDecimal("9e-1", parser)
testDecimal("-9e1", parser)
testDecimal("9.0e1", parser)
testDecimal(".9e+2", parser)
testDecimal("0.9e+2", parser)
}
}
test("strings") {
Seq(true, false).foreach { escape =>
withSQLConf(SQLConf.ESCAPED_STRING_LITERALS.key -> escape.toString) {
val parser = new CatalystSqlParser()
// tests that have same result whatever the conf is
// Single Strings.
assertEqual("\"hello\"", "hello", parser)
assertEqual("'hello'", "hello", parser)
// Multi-Strings.
assertEqual("\"hello\" 'world'", "helloworld", parser)
assertEqual("'hello' \" \" 'world'", "hello world", parser)
// 'LIKE' string literals. Notice that an escaped '%' is the same as an escaped '\' and a
// regular '%'; to get the correct result you need to add another escaped '\'.
// TODO figure out if we shouldn't change the ParseUtils.unescapeSQLString method?
assertEqual("'pattern%'", "pattern%", parser)
assertEqual("'no-pattern\\%'", "no-pattern\\%", parser)
// tests that have different result regarding the conf
if (escape) {
// When SQLConf.ESCAPED_STRING_LITERALS is enabled, string literal parsing falls back to
// Spark 1.6 behavior.
// 'LIKE' string literals.
assertEqual("'pattern\\\\%'", "pattern\\\\%", parser)
assertEqual("'pattern\\\\\\%'", "pattern\\\\\\%", parser)
// Escaped characters.
// Unescape string literal "'\\0'" for ASCII NUL (X'00') doesn't work
// when ESCAPED_STRING_LITERALS is enabled.
// It is parsed literally.
assertEqual("'\\0'", "\\0", parser)
// Note: Single quote follows 1.6 parsing behavior
// when ESCAPED_STRING_LITERALS is enabled.
val e = intercept[ParseException](parser.parseExpression("'\''"))
assert(e.message.contains("extraneous input '''"))
// The unescape special characters (e.g., "\\t") for 2.0+ don't work
// when ESCAPED_STRING_LITERALS is enabled. They are parsed literally.
assertEqual("'\\\"'", "\\\"", parser) // Double quote
assertEqual("'\\b'", "\\b", parser) // Backspace
assertEqual("'\\n'", "\\n", parser) // Newline
assertEqual("'\\r'", "\\r", parser) // Carriage return
assertEqual("'\\t'", "\\t", parser) // Tab character
// The unescape Octals for 2.0+ don't work when ESCAPED_STRING_LITERALS is enabled.
// They are parsed literally.
assertEqual("'\\110\\145\\154\\154\\157\\041'", "\\110\\145\\154\\154\\157\\041", parser)
// The unescape Unicode for 2.0+ doesn't work when ESCAPED_STRING_LITERALS is enabled.
// They are parsed literally.
assertEqual("'\\u0057\\u006F\\u0072\\u006C\\u0064\\u0020\\u003A\\u0029'",
"\\u0057\\u006F\\u0072\\u006C\\u0064\\u0020\\u003A\\u0029", parser)
} else {
// Default behavior
// 'LIKE' string literals.
assertEqual("'pattern\\\\%'", "pattern\\%", parser)
assertEqual("'pattern\\\\\\%'", "pattern\\\\%", parser)
// Escaped characters.
// See: http://dev.mysql.com/doc/refman/5.7/en/string-literals.html
assertEqual("'\\0'", "\u0000", parser) // ASCII NUL (X'00')
assertEqual("'\\''", "\'", parser) // Single quote
assertEqual("'\\\"'", "\"", parser) // Double quote
assertEqual("'\\b'", "\b", parser) // Backspace
assertEqual("'\\n'", "\n", parser) // Newline
assertEqual("'\\r'", "\r", parser) // Carriage return
assertEqual("'\\t'", "\t", parser) // Tab character
assertEqual("'\\Z'", "\u001A", parser) // ASCII 26 - CTRL + Z (EOF on windows)
// Octals
assertEqual("'\\110\\145\\154\\154\\157\\041'", "Hello!", parser)
// Unicode
assertEqual("'\\u0057\\u006F\\u0072\\u006C\\u0064\\u0020\\u003A\\u0029'", "World :)",
parser)
}
}
}
}
val intervalUnits = Seq(
YEAR,
MONTH,
WEEK,
DAY,
HOUR,
MINUTE,
SECOND,
MILLISECOND,
MICROSECOND)
def intervalLiteral(u: IntervalUnit, s: String): Literal = {
Literal(IntervalUtils.stringToInterval(s + " " + u.toString))
}
test("intervals") {
def checkIntervals(intervalValue: String, expected: Literal): Unit = {
Seq(
"" -> expected,
"-" -> UnaryMinus(expected)
).foreach { case (sign, expectedLiteral) =>
assertEqual(s"${sign}interval $intervalValue", expectedLiteral)
}
}
// Empty interval statement
intercept("interval", "at least one time unit should be given for interval literal")
// Single Intervals.
val forms = Seq("", "s")
val values = Seq("0", "10", "-7", "21")
intervalUnits.foreach { unit =>
forms.foreach { form =>
values.foreach { value =>
val expected = intervalLiteral(unit, value)
checkIntervals(s"$value $unit$form", expected)
checkIntervals(s"'$value' $unit$form", expected)
}
}
}
// Hive nanosecond notation.
checkIntervals("13.123456789 seconds", intervalLiteral(SECOND, "13.123456789"))
checkIntervals(
"-13.123456789 second",
Literal(new CalendarInterval(
0,
0,
DateTimeTestUtils.secFrac(-13, -123, -456))))
checkIntervals(
"13.123456 second",
Literal(new CalendarInterval(
0,
0,
DateTimeTestUtils.secFrac(13, 123, 456))))
checkIntervals("1.001 second",
Literal(IntervalUtils.stringToInterval("1 second 1 millisecond")))
// Non Existing unit
intercept("interval 10 nanoseconds", "invalid unit 'nanoseconds'")
withSQLConf(SQLConf.LEGACY_INTERVAL_ENABLED.key -> "true") {
// Year-Month intervals.
val yearMonthValues = Seq("123-10", "496-0", "-2-3", "-123-0", "\t -1-2\t")
yearMonthValues.foreach { value =>
val result = Literal(IntervalUtils.fromYearMonthString(value))
checkIntervals(s"'$value' year to month", result)
}
// Day-Time intervals.
val datTimeValues = Seq(
"99 11:22:33.123456789",
"-99 11:22:33.123456789",
"10 9:8:7.123456789",
"1 0:0:0",
"-1 0:0:0",
"1 0:0:1",
"\t 1 0:0:1 ")
datTimeValues.foreach { value =>
val result = Literal(IntervalUtils.fromDayTimeString(value))
checkIntervals(s"'$value' day to second", result)
}
// Hour-Time intervals.
val hourTimeValues = Seq(
"11:22:33.123456789",
"9:8:7.123456789",
"-19:18:17.123456789",
"0:0:0",
"0:0:1")
hourTimeValues.foreach { value =>
val result = Literal(IntervalUtils.fromDayTimeString(
value, DayTimeIntervalType.HOUR, DayTimeIntervalType.SECOND))
checkIntervals(s"'$value' hour to second", result)
}
}
// Unknown FROM TO intervals
intercept("interval '10' month to second",
"Intervals FROM month TO second are not supported.")
// Composed intervals.
checkIntervals(
"3 months 4 days 22 seconds 1 millisecond",
Literal(new CalendarInterval(3, 4, 22001000L)))
}
test("composed expressions") {
assertEqual("1 + r.r As q", (Literal(1) + UnresolvedAttribute("r.r")).as("q"))
assertEqual("1 - f('o', o(bar))", Literal(1) - 'f.function("o", 'o.function('bar)))
intercept("1 - f('o', o(bar)) hello * world", "mismatched input '*'")
}
test("SPARK-17364, fully qualified column name which starts with number") {
assertEqual("123_", UnresolvedAttribute("123_"))
assertEqual("1a.123_", UnresolvedAttribute("1a.123_"))
// ".123" should not be treated as token of type DECIMAL_VALUE
assertEqual("a.123A", UnresolvedAttribute("a.123A"))
// ".123E3" should not be treated as token of type SCIENTIFIC_DECIMAL_VALUE
assertEqual("a.123E3_column", UnresolvedAttribute("a.123E3_column"))
// ".123D" should not be treated as token of type DOUBLE_LITERAL
assertEqual("a.123D_column", UnresolvedAttribute("a.123D_column"))
// ".123BD" should not be treated as token of type BIGDECIMAL_LITERAL
assertEqual("a.123BD_column", UnresolvedAttribute("a.123BD_column"))
}
test("SPARK-17832 function identifier contains backtick") {
val complexName = FunctionIdentifier("`ba`r", Some("`fo`o"))
assertEqual(complexName.quotedString, UnresolvedAttribute(Seq("`fo`o", "`ba`r")))
intercept(complexName.unquotedString, "mismatched input")
// Function identifier contains continuous backticks should be treated correctly.
val complexName2 = FunctionIdentifier("ba``r", Some("fo``o"))
assertEqual(complexName2.quotedString, UnresolvedAttribute(Seq("fo``o", "ba``r")))
}
test("SPARK-19526 Support ignore nulls keywords for first and last") {
assertEqual("first(a ignore nulls)", First('a, true).toAggregateExpression())
assertEqual("first(a)", First('a, false).toAggregateExpression())
assertEqual("last(a ignore nulls)", Last('a, true).toAggregateExpression())
assertEqual("last(a)", Last('a, false).toAggregateExpression())
}
test("timestamp literals") {
DateTimeTestUtils.outstandingZoneIds.foreach { zid =>
withSQLConf(SQLConf.SESSION_LOCAL_TIMEZONE.key -> zid.getId) {
def toMicros(time: LocalDateTime): Long = {
val seconds = time.atZone(zid).toInstant.getEpochSecond
TimeUnit.SECONDS.toMicros(seconds)
}
assertEval(
sqlCommand = "TIMESTAMP '2019-01-14 20:54:00.000'",
expect = toMicros(LocalDateTime.of(2019, 1, 14, 20, 54)))
assertEval(
sqlCommand = "Timestamp '2000-01-01T00:55:00'",
expect = toMicros(LocalDateTime.of(2000, 1, 1, 0, 55)))
// Parsing of the string does not depend on the SQL config because the string contains
// time zone offset already.
assertEval(
sqlCommand = "TIMESTAMP '2019-01-16 20:50:00.567000+01:00'",
expect = 1547668200567000L)
}
}
}
test("date literals") {
DateTimeTestUtils.outstandingTimezonesIds.foreach { timeZone =>
withSQLConf(SQLConf.SESSION_LOCAL_TIMEZONE.key -> timeZone) {
assertEval("DATE '2019-01-14'", 17910)
assertEval("DATE '2019-01'", 17897)
assertEval("DATE '2019'", 17897)
}
}
}
test("current date/timestamp braceless expressions") {
withSQLConf(SQLConf.ANSI_ENABLED.key -> "true") {
assertEqual("current_date", CurrentDate())
assertEqual("current_timestamp", CurrentTimestamp())
}
withSQLConf(SQLConf.ANSI_ENABLED.key -> "false") {
assertEqual("current_date", UnresolvedAttribute.quoted("current_date"))
assertEqual("current_timestamp", UnresolvedAttribute.quoted("current_timestamp"))
}
}
}