Andrew Dunstan d57c7a7c50 Provide a test for variable existence in psql ...

"\if :{?variable_name}" will be translated to "\if TRUE" if the variable
exists and "\if FALSE" otherwise. Thus it will be possible to execute code
conditionally on the existence of the variable, regardless of its value.

Fabien Coelho, with some review by Robins Tharakan and some light text
editing by me.

Discussion: https://postgr.es/m/alpine.DEB.2.20.1708260835520.3627@lancre

2017-09-21 19:02:23 -04:00

..

mbprint.h

Phase 2 of pgindent updates.

2017-06-21 15:19:25 -04:00

print.h

Phase 2 of pgindent updates.

2017-06-21 15:19:25 -04:00

psqlscan_int.h

Provide a test for variable existence in psql

2017-09-21 19:02:23 -04:00

psqlscan.h

Phase 2 of pgindent updates.

2017-06-21 15:19:25 -04:00

simple_list.h

Phase 2 of pgindent updates.

2017-06-21 15:19:25 -04:00

string_utils.h

Phase 2 of pgindent updates.

2017-06-21 15:19:25 -04:00