From: David Bremner <david@tethera.net>
Date: Tue, 7 Jul 2020 10:56:46 +0000 (-0300)
Subject: lib: migrate from Xapian ValueRangeProcessor to RangeProcessor
X-Git-Tag: 0.31_rc0~161
X-Git-Url: https://git.cworth.org/git?a=commitdiff_plain;h=b90d852a2fb377d5b7db4ab2ac389964f8c0c3b3;hp=b90d852a2fb377d5b7db4ab2ac389964f8c0c3b3;p=notmuch

lib: migrate from Xapian ValueRangeProcessor to RangeProcessor

This will be mandatory as of Xapian 1.5.  The API is also more
consistent with the FieldProcessor API, which helps code re-use a bit.

Note that this switches to using the built-in Xapian support for
prefixes on ranges (i.e. deleted code at beginning of
ParseTimeRangeProcessor::operator(), added prefix to constructor).

Another side effect of the migration is that we are generating smaller
queries, using one OP_VALUE_RANGE instead of an AND of two OP_VALUE_*
queries.
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