From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Sun, 16 Oct 2016 19:58:07 +0000 (+0300)
Subject: dict-sql: Use LIMIT in SQL queries with dict_iterate_set_limit()
X-Git-Tag: 2.2.26~116
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=df6bf0202815c053fd1d9ed16e792445dcd182bb;p=thirdparty%2Fdovecot%2Fcore.git

dict-sql: Use LIMIT in SQL queries with dict_iterate_set_limit()
---

diff --git a/src/lib-dict/dict-sql.c b/src/lib-dict/dict-sql.c
index f0538d59c7..d7fe4053e1 100644
--- a/src/lib-dict/dict-sql.c
+++ b/src/lib-dict/dict-sql.c
@@ -616,6 +616,12 @@ sql_dict_iterate_build_next_query(struct sql_dict_iterate_context *ctx,
 	} else if ((ctx->flags & DICT_ITERATE_FLAG_SORT_BY_VALUE) != 0)
 		str_printfa(query, " ORDER BY %s", map->value_field);
 
+	if (ctx->ctx.max_rows > 0) {
+		i_assert(ctx->ctx.row_count < ctx->ctx.max_rows);
+		str_printfa(query, " LIMIT %llu",
+			(unsigned long long)(ctx->ctx.max_rows - ctx->ctx.row_count));
+	}
+
 	ctx->map = map;
 	return 1;
 }