pgsql: Check for interrupts in pg_trgm word similarity

Check for interrupts in pg_trgm word similarity

Calculating similarity between large strings can be timesconsuming
and overrun configured statement timeouts. Check for interrupts in
the main loop to ensure query cancellation can be performed.

Author: Robins Tharakan <tharakan@gmail.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CAEP4nAxvmfc_XWTz73bqXRhgjONi=1HaX4_NhsopA3L6UvnN1g@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/ae4fc52ae24785f51e3dc5a4c7e5b4d206356bdc

Modified Files
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contrib/pg_trgm/trgm_op.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)