SQL: fix multi full-text functions usage with aggregate functions #47444
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aggregate functions with "stats" or "matrix_stats" aggregations.
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Pinging @elastic/es-search (:Search/SQL) |
matriv
reviewed
Oct 2, 2019
matriv
approved these changes
Oct 3, 2019
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Full-text functions (predicates) are simple expressions (vs. named expressions) and, thus, they don't have an associated Painless script to be used in queries, nor they have results to be returned to the user (function attributes). In the specific case of replacing multiple aggregate functions (avg, min, max, skewness, variance etc) with their simplified ES aggregation (
statsormatrix_stats) any function to be replaced is searched for in the rest of the query to get replaced as well.During this search, a logical binary function - OR or AND - where full-text predicates are used is attempted to have a function attribute created for it which fails, as stated above.
The fix is to skip those functions that use full-text predicates, as they won't have a function attribute to check.
Fixes #47365.