pgsql: Identify simple column references in extended statistics

2021-09-01 Thread Tomas Vondra
Identify simple column references in extended statistics Until now, when defining extended statistics, everything except a plain column reference was treated as complex expression. So for example "a" was a column reference, but "(a)" would be an expression. In most cases this does not matter much,

pgsql: Identify simple column references in extended statistics

2021-09-01 Thread Tomas Vondra
Identify simple column references in extended statistics Until now, when defining extended statistics, everything except a plain column reference was treated as complex expression. So for example "a" was a column reference, but "(a)" would be an expression. In most cases this does not matter much,