pgsql: set_ps_display when calling functions via fastpath

set_ps_display when calling functions via fastpath

This improves tag output by log_line_prefix

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=3026027ec3a795745e8e80fc9f204bebc97be58e

Modified Files
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src/backend/tcop/postgres.c |    3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)