Introduce routines to validate and free MVNDistinct and MVDependencies These routines are useful to perform some basic validation checks on each object structure, working currently on attribute numbers for non-expression and expression attnums. These checks could be extended in the future.
Note that this code is not used yet in the tree, and that these functions will become handy for an upcoming patch for the import of extended statistics data. However, they are worth their own independent change as they are actually useful by themselves, with at least the extension code argument in mind (or perhaps I am just feeling more pedantic today). Extracted from a larger patch by the same author, with many adjustments and fixes by me. Author: Corey Huinker <[email protected]> Reviewed-by: Chao Li <[email protected]> Reviewed-by: Michael Paquier <[email protected]> Discussion: https://postgr.es/m/CADkLM=dpz3KFnqP-dgJ-zvRvtjsa8UZv8wDAQdqho=qn3kx...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/32e27bd320821df49dd212912b9e90d3d98e24f1 Modified Files -------------- src/backend/statistics/dependencies.c | 76 ++++++++++++++++++++++++ src/backend/statistics/mvdistinct.c | 76 ++++++++++++++++++++++++ src/include/statistics/extended_stats_internal.h | 8 +++ 3 files changed, 160 insertions(+)
