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Applying normalization changes how the following query strings are reflected in pg_stat_statements, by showing Const nodes with a dollar-signed parameter as this is how such queries are structured internally once parsed: - DECLARE - EXPLAIN - CREATE MATERIALIZED VIEW - CREATE TABLE AS More normalization could be done in the future depending on the parts where query jumbling is applied (like A_Const nodes?), the changes being reflected in the regression tests in majority created in de2aca2. This just allows the basics to work for utility queries using Const nodes. Reviewed-by: Bertrand Drouvot Discussion: https://postgr.es/m/Y+MRdEq9W9XVa2AB@paquier.xyz
The PostgreSQL contrib tree --------------------------- This subtree contains porting tools, analysis utilities, and plug-in features that are not part of the core PostgreSQL system, mainly because they address a limited audience or are too experimental to be part of the main source tree. This does not preclude their usefulness. User documentation for each module appears in the main SGML documentation. When building from the source distribution, these modules are not built automatically, unless you build the "world" target. You can also build and install them all by running "make all" and "make install" in this directory; or to build and install just one selected module, do the same in that module's subdirectory. Some directories supply new user-defined functions, operators, or types. To make use of one of these modules, after you have installed the code you need to register the new SQL objects in the database system by executing a CREATE EXTENSION command. In a fresh database, you can simply do CREATE EXTENSION module_name; See the PostgreSQL documentation for more information about this procedure.