Add eachGreaterThan / eachLessThan / eachGreaterThanOrEqual / eachLessThanOrEqual operators - #46
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…rEqual operators Closes #24
…urning Establishes per-row predicates as a type-distinct family separate from single-value boolean expressions: - New operators: eachEqual (7 types), eachAnd, eachOr, eachNot - each* expressions now return booleanArrayReturning (was booleanReturning) - each* right operand accepts *Returning or *ArrayReturning, enabling per-row field-to-field comparisons without aggregates - where and joinItem.on broadened to accept booleanArrayReturning - having unchanged: structurally rejects per-row predicates, fixing accidental validation of non-aggregated fields in HAVING Sample migrations move field-to-literal filtering from arrayEquality (single-element array wrap) to eachEqual (unwrapped scalar). Three new samples cover field-to-field range comparison, the eachNot(eachEqual) not-equal idiom, and mixed-type eachAnd/eachOr composition. Version bump 0.1.0-preview.0.1.0 -> 0.1.0-preview.0.2.0. CHANGELOG entry includes detailed interpreter notes covering dispatch on the new oneOf slots and the each* polymorphism.
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Summary
definitions/comparisons:numericArrayComparison,stringArrayComparison,dateArrayComparison,datetimeArrayComparison,timeArrayComparison— each takes an*ArrayReturningleft operand and a matching single-value-returning right operand with the foureach*operators.definitions/comparison.oneOf, making the new operators available inwhere,having, andjoin.onwithout further changes.samples/13_range_filter.jsondemonstratingeachGreaterThanontotal(number) andeachLessThanoncreated_at(datetime) in the samewhereclause.README.md.Closes #24
Test plan
python3 -c "import json, jsonschema, glob; spec = json.load(open('PureQL-Specification.json')); [jsonschema.validate(json.load(open(f)), spec) for f in sorted(glob.glob('samples/*.json'))]")