v0.4.0

Changed

• BREAKING: partiql-eval: modifies visibility of types implementing EvalExpr and Evaluable
• BREAKING: removed from_ion method on Value
• BREAKING: partiql-ast: visit fn returns a partiql-ast::Recurse type to indicate if visitation of children nodes should continue
• BREAKING: partiql-logical-planner: modifies lower(parsed: &Parsed) to return a Result type of Result<logical::LogicalPlan<logical::BindingsOp>, LoweringError> rather than a logical::LogicalPlan<logical::BindingsOp>
• BREAKING: partiql-eval: modifies compile(&mut self, plan: &LogicalPlan<BindingsOp>) to return a Result type of Result<EvalPlan, PlanErr> rather than an EvalPlan
  • This is part of an effort to replace panics with Results
• BREAKING: partiql-logical-planner: Adds a LogicalPlanner to encapsulate the lower method
• BREAKING: partiql-eval: Adds a EvaluatorPlanner now requires a Catalog to be supplied at initialization
• BREAKING: partiql-logical-planner: CallDef and related types moved to partiql-catalog

Added

• Implements built-in function EXTRACT
• Add partiql-extension-ion extension for encoding/decoding Value to/from Ion data
• Add partiql-extension-ion-functions extension which contains an extension function for reading from an Ion file
• Add partiql-catalog including an experimental Catalog interface and implementation
• Implements the COLL_* functions -- COLL_AVG, COLL_COUNT, COLL_MAX, COLL_MIN, COLL_SUM

Fixes

• Fix parsing of EXTRACT datetime parts YEAR, TIMEZONE_HOUR, and TIMEZONE_MINUTE
• Fix logical plan to eval plan conversion for EvalOrderBySortSpec with arguments DESC and NULLS LAST
• Fix parsing of EXTRACT to allow keywords after the FROM