tree 53a1a4ed77637f31b8cf683e23fc259493338a0c
parent ad98d977160e285dd9c9d5a8fa670324b3f1420d
author Quentin Smith <quentin@golang.org> 1487033044 -0500
committer Quentin Smith <quentin@golang.org> 1487361040 +0000

storage/db: query optimizations for duplicate keys

Queries with multiple parts referring to the same key are now
simplified before sending to the database. If the query can be proven
to return no results, the query is not sent to the database at all.

Change-Id: I2d307d09f463fb0e6e7bd9b9902115916e7ffffa
Reviewed-on: https://go-review.googlesource.com/36953
Run-TryBot: Quentin Smith <quentin@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>