pgsql: Doc: add a little about LACON execution to src/backend/regex/REA - Mailing list pgsql-committers

Doc: add a little about LACON execution to src/backend/regex/README.

I wrote this while thinking about a possible optimization, but it's
a useful description of the existing code regardless of whether the
optimization ever happens.  So push it separately.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/10d58228bb1c824c5124ecd1b6c5e46a3c157a39

Modified Files
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src/backend/regex/README | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)