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Support parsing Oracle EXPLAIN PLAN sql (#29663)
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@kanha-gupta
kanha-gupta authored Jan 5, 2024
1 parent 55065b7 commit b0d69d0
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147 changes: 147 additions & 0 deletions test/it/parser/src/main/resources/case/dal/explain.xml
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<comment start-index="0" stop-index="19" text="/*FORCE_IMCI_NODES*/" />
<comment start-index="36" stop-index="76" text="/*+ SET_VAR(cost_threshold_for_imci=0) */" />
</describe>

<describe sql-case-id="explain_for_select_with_group_by">
<select>
<projections start-index="24" stop-index="64">
<column-projection name="calendar_month_desc" start-index="24" stop-index="44" >
<owner name="t" start-index="24" stop-index="24" />
</column-projection>
<aggregation-projection type="SUM" expression="SUM(s.amount_sold)" start-index="47" stop-index="64" />
</projections>
<from>
<join-table join-type="COMMA">
<left>
<simple-table name="sales" alias="s" start-index="72" stop-index="78" />
</left>
<right>
<simple-table name="times" alias="t" start-index="81" stop-index="87" />
</right>
</join-table>
</from>
<where start-index="89" stop-index="115">
<expr>
<binary-operation-expression start-index="95" stop-index="115">
<left>
<column name="time_id" start-index="95" stop-index="103" >
<owner name="s" start-index="95" stop-index="95" />
</column>
</left>
<operator>=</operator>
<right>
<column name="time_id" start-index="107" stop-index="115" >
<owner name="t" start-index="107" stop-index="107" />
</column>
</right>
</binary-operation-expression>
</expr>
</where>
<group-by>
<column-item name="calendar_month_desc" start-index="126" stop-index="146" >
<owner name="t" start-index="126" stop-index="126" />
</column-item>
</group-by>
</select>
</describe>

<describe sql-case-id="explain_for_select_with_function">
<select>
<projections start-index="24" stop-index="39">
<aggregation-projection type="SUM" expression="SUM(amount_sold)" start-index="24" stop-index="39" />
</projections>
<from>
<simple-table name="sales" start-index="46" stop-index="50" />
</from>
<where start-index="52" stop-index="89">
<expr>
<binary-operation-expression start-index="58" stop-index="89">
<left>
<function function-name="TO_CHAR" text="TO_CHAR(time_id,'yyyy')" start-index="58" stop-index="80">
<parameter>
<column name="time_id" start-index="66" stop-index="72" />
</parameter>
<parameter>
<literal-expression value="yyyy" start-index="74" stop-index="79" />
</parameter>
</function>
</left>
<operator>=</operator>
<right>
<literal-expression value="2000" start-index="84" stop-index="89"/>
</right>
</binary-operation-expression>
</expr>
</where>
</select>
</describe>

<describe sql-case-id="explain_for_select_with_function_and_function">
<select>
<projections start-index="24" stop-index="41">
<aggregation-projection type="SUM" expression="SUM(quantity_sold)" start-index="24" stop-index="41" />
</projections>
<from>
<simple-table name="sales" start-index="48" stop-index="52" />
</from>
<where start-index="54" stop-index="110" >
<expr>
<binary-operation-expression start-index="60" stop-index="110">
<left>
<column name="time_id" start-index="60" stop-index="66" />
</left>
<operator>=</operator>
<right>
<function function-name="TO_TIMESTAMP" text="TO_TIMESTAMP('1-jan-2000', 'dd-mon-yyyy')" start-index="70" stop-index="110">
<parameter>
<literal-expression value="1-jan-2000" start-index="83" stop-index="94" />
</parameter>
<parameter>
<literal-expression value="dd-mon-yyyy" start-index="97" stop-index="109" />
</parameter>
</function>
</right>
</binary-operation-expression>
</expr>
</where>
</select>
</describe>

<describe sql-case-id="explain_for_select">
<select>
<projections start-index="24" stop-index="24">
<shorthand-projection start-index="24" stop-index="24" />
</projections>
<from>
<simple-table name="customers" start-index="31" stop-index="42">
<owner name="sh" start-index="31" stop-index="32" />
</simple-table>
</from>
<where start-index="44" stop-index="101" >
<expr>
<binary-operation-expression start-index="50" stop-index="101">
<left>
<binary-operation-expression start-index="50" stop-index="72">
<left>
<column name="cust_city" start-index="50" stop-index="58"/>
</left>
<operator>=</operator>
<right>
<literal-expression value="Los Angeles" start-index="60" stop-index="72" />
</right>
</binary-operation-expression>
</left>
<operator>AND</operator>
<right>
<binary-operation-expression start-index="78" stop-index="101">
<left>
<column name="cust_state_province" start-index="78" stop-index="96" />
</left>
<operator>=</operator>
<right>
<literal-expression value="CA" start-index="98" stop-index="101"/>
</right>
</binary-operation-expression>
</right>
</binary-operation-expression>
</expr>
</where>
</select>
</describe>
</sql-parser-test-cases>
4 changes: 4 additions & 0 deletions test/it/parser/src/main/resources/sql/supported/dal/explain.xml
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Expand Up @@ -74,4 +74,8 @@
<sql-case id="explain_for_select_with_unique_partition_by" value="EXPLAIN PLAN FOR SELECT country, prod, year, sales FROM sales_view WHERE country IN ('Italy', 'Japan') MODEL UNIQUE DIMENSION PARTITION BY (country) DIMENSION BY (prod, year)
MEASURES (sale sales) RULES UPSERT (sales['Bounce', 2003] = AVG(sales)[ANY, 2002] * 1.24, sales[prod &lt;&gt; 'Bounce', 2003] = sales['Bounce', 2003] * 0.25)" db-types="Oracle" />
<sql-case id="explain_with_select_comment" value="/*FORCE_IMCI_NODES*/ explain select /*+ SET_VAR(cost_threshold_for_imci=0) */ * from t_order" db-types="MySQL" />
<sql-case id="explain_for_select_with_group_by" value="EXPLAIN PLAN FOR SELECT t.calendar_month_desc, SUM(s.amount_sold) FROM sales s, times t WHERE s.time_id = t.time_id GROUP BY t.calendar_month_desc" db-types="Oracle" />
<sql-case id="explain_for_select_with_function" value="EXPLAIN PLAN FOR SELECT SUM(amount_sold) FROM sales WHERE TO_CHAR(time_id,'yyyy') = '2000'" db-types="Oracle" />
<sql-case id="explain_for_select_with_function_and_function" value="EXPLAIN PLAN FOR SELECT SUM(quantity_sold) FROM sales WHERE time_id = TO_TIMESTAMP('1-jan-2000', 'dd-mon-yyyy')" db-types="Oracle" />
<sql-case id="explain_for_select" value="EXPLAIN PLAN FOR SELECT * FROM sh.customers WHERE cust_city='Los Angeles' AND cust_state_province='CA'" db-types="Oracle" />
</sql-cases>

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