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b0b7be6133
This lets BRIN be used with R-Tree-like indexing strategies. Also provided are operator classes for range types, box and inet/cidr. The infrastructure provided here should be sufficient to create operator classes for similar datatypes; for instance, opclasses for PostGIS geometries should be doable, though we didn't try to implement one. (A box/point opclass was also submitted, but we ripped it out before commit because the handling of floating point comparisons in existing code is inconsistent and would generate corrupt indexes.) Author: Emre Hasegeli. Cosmetic changes by me Review: Andreas Karlsson
254 lines
12 KiB
SQL
254 lines
12 KiB
SQL
CREATE TABLE brintest (byteacol bytea,
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charcol "char",
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namecol name,
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int8col bigint,
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int2col smallint,
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int4col integer,
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textcol text,
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oidcol oid,
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tidcol tid,
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float4col real,
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float8col double precision,
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macaddrcol macaddr,
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inetcol inet,
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cidrcol cidr,
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bpcharcol character,
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datecol date,
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timecol time without time zone,
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timestampcol timestamp without time zone,
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timestamptzcol timestamp with time zone,
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intervalcol interval,
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timetzcol time with time zone,
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bitcol bit(10),
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varbitcol bit varying(16),
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numericcol numeric,
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uuidcol uuid,
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int4rangecol int4range,
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lsncol pg_lsn,
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boxcol box
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) WITH (fillfactor=10, autovacuum_enabled=off);
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INSERT INTO brintest SELECT
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repeat(stringu1, 8)::bytea,
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substr(stringu1, 1, 1)::"char",
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stringu1::name, 142857 * tenthous,
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thousand,
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twothousand,
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repeat(stringu1, 8),
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unique1::oid,
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format('(%s,%s)', tenthous, twenty)::tid,
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(four + 1.0)/(hundred+1),
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odd::float8 / (tenthous + 1),
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format('%s:00:%s:00:%s:00', to_hex(odd), to_hex(even), to_hex(hundred))::macaddr,
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inet '10.2.3.4/24' + tenthous,
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cidr '10.2.3/24' + tenthous,
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substr(stringu1, 1, 1)::bpchar,
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date '1995-08-15' + tenthous,
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time '01:20:30' + thousand * interval '18.5 second',
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timestamp '1942-07-23 03:05:09' + tenthous * interval '36.38 hours',
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timestamptz '1972-10-10 03:00' + thousand * interval '1 hour',
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justify_days(justify_hours(tenthous * interval '12 minutes')),
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timetz '01:30:20+02' + hundred * interval '15 seconds',
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thousand::bit(10),
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tenthous::bit(16)::varbit,
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tenthous::numeric(36,30) * fivethous * even / (hundred + 1),
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format('%s%s-%s-%s-%s-%s%s%s', to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'))::uuid,
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int4range(thousand, twothousand),
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format('%s/%s%s', odd, even, tenthous)::pg_lsn,
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box(point(odd, even), point(thousand, twothousand))
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FROM tenk1 LIMIT 100;
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-- throw in some NULL's and different values
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INSERT INTO brintest (inetcol, cidrcol, int4rangecol) SELECT
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inet 'fe80::6e40:8ff:fea9:8c46' + tenthous,
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cidr 'fe80::6e40:8ff:fea9:8c46' + tenthous,
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'empty'::int4range
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FROM tenk1 LIMIT 25;
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CREATE INDEX brinidx ON brintest USING brin (
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byteacol,
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charcol,
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namecol,
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int8col,
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int2col,
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int4col,
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textcol,
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oidcol,
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tidcol,
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float4col,
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float8col,
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macaddrcol,
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inetcol inet_inclusion_ops,
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inetcol inet_minmax_ops,
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bpcharcol,
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datecol,
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timecol,
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timestampcol,
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timestamptzcol,
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intervalcol,
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timetzcol,
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bitcol,
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varbitcol,
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numericcol,
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uuidcol,
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int4rangecol,
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lsncol,
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boxcol
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) with (pages_per_range = 1);
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CREATE TABLE brinopers (colname name, typ text, op text[], value text[],
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check (cardinality(op) = cardinality(value)));
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INSERT INTO brinopers VALUES
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('byteacol', 'bytea', '{>, >=, =, <=, <}', '{AAAAAA, AAAAAA, BNAAAABNAAAABNAAAABNAAAABNAAAABNAAAABNAAAABNAAAA, ZZZZZZ, ZZZZZZ}'),
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('charcol', 'char', '{>, >=, =, <=, <}', '{A, A, M, Z, Z}'),
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('namecol', 'name', '{>, >=, =, <=, <}', '{AAAAAA, AAAAAA, MAAAAA, ZZAAAA, ZZAAAA}'),
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('int2col', 'int2', '{>, >=, =, <=, <}', '{0, 0, 800, 999, 999}'),
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('int2col', 'int4', '{>, >=, =, <=, <}', '{0, 0, 800, 999, 1999}'),
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('int2col', 'int8', '{>, >=, =, <=, <}', '{0, 0, 800, 999, 1428427143}'),
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('int4col', 'int2', '{>, >=, =, <=, <}', '{0, 0, 800, 1999, 1999}'),
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('int4col', 'int4', '{>, >=, =, <=, <}', '{0, 0, 800, 1999, 1999}'),
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('int4col', 'int8', '{>, >=, =, <=, <}', '{0, 0, 800, 1999, 1428427143}'),
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('int8col', 'int2', '{>, >=}', '{0, 0}'),
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('int8col', 'int4', '{>, >=}', '{0, 0}'),
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('int8col', 'int8', '{>, >=, =, <=, <}', '{0, 0, 1257141600, 1428427143, 1428427143}'),
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('textcol', 'text', '{>, >=, =, <=, <}', '{AAAAAA, AAAAAA, BNAAAABNAAAABNAAAABNAAAABNAAAABNAAAABNAAAABNAAAA, ZZAAAA, ZZAAAA}'),
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('oidcol', 'oid', '{>, >=, =, <=, <}', '{0, 0, 8800, 9999, 9999}'),
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('tidcol', 'tid', '{>, >=, =, <=, <}', '{"(0,0)", "(0,0)", "(8800,0)", "(9999,19)", "(9999,19)"}'),
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('float4col', 'float4', '{>, >=, =, <=, <}', '{0.0103093, 0.0103093, 1, 1, 1}'),
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('float4col', 'float8', '{>, >=, =, <=, <}', '{0.0103093, 0.0103093, 1, 1, 1}'),
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('float8col', 'float4', '{>, >=, =, <=, <}', '{0, 0, 0, 1.98, 1.98}'),
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('float8col', 'float8', '{>, >=, =, <=, <}', '{0, 0, 0, 1.98, 1.98}'),
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('macaddrcol', 'macaddr', '{>, >=, =, <=, <}', '{00:00:01:00:00:00, 00:00:01:00:00:00, 2c:00:2d:00:16:00, ff:fe:00:00:00:00, ff:fe:00:00:00:00}'),
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('inetcol', 'inet', '{&&, =, <, <=, >, >=, >>=, >>, <<=, <<}', '{10/8, 10.2.14.231/24, 255.255.255.255, 255.255.255.255, 0.0.0.0, 0.0.0.0, 10.2.14.231/24, 10.2.14.231/25, 10.2.14.231/8, 0/0}'),
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('inetcol', 'inet', '{&&, >>=, <<=, =}', '{fe80::6e40:8ff:fea9:a673/32, fe80::6e40:8ff:fea9:8c46, fe80::6e40:8ff:fea9:a673/32, fe80::6e40:8ff:fea9:8c46}'),
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('inetcol', 'cidr', '{&&, <, <=, >, >=, >>=, >>, <<=, <<}', '{10/8, 255.255.255.255, 255.255.255.255, 0.0.0.0, 0.0.0.0, 10.2.14/24, 10.2.14/25, 10/8, 0/0}'),
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('inetcol', 'cidr', '{&&, >>=, <<=, =}', '{fe80::/32, fe80::6e40:8ff:fea9:8c46, fe80::/32, fe80::6e40:8ff:fea9:8c46}'),
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('cidrcol', 'inet', '{&&, =, <, <=, >, >=, >>=, >>, <<=, <<}', '{10/8, 10.2.14/24, 255.255.255.255, 255.255.255.255, 0.0.0.0, 0.0.0.0, 10.2.14.231/24, 10.2.14.231/25, 10.2.14.231/8, 0/0}'),
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('cidrcol', 'inet', '{&&, >>=, <<=, =}', '{fe80::6e40:8ff:fea9:a673/32, fe80::6e40:8ff:fea9:8c46, fe80::6e40:8ff:fea9:a673/32, fe80::6e40:8ff:fea9:8c46}'),
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('cidrcol', 'cidr', '{&&, =, <, <=, >, >=, >>=, >>, <<=, <<}', '{10/8, 10.2.14/24, 255.255.255.255, 255.255.255.255, 0.0.0.0, 0.0.0.0, 10.2.14/24, 10.2.14/25, 10/8, 0/0}'),
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('cidrcol', 'cidr', '{&&, >>=, <<=, =}', '{fe80::/32, fe80::6e40:8ff:fea9:8c46, fe80::/32, fe80::6e40:8ff:fea9:8c46}'),
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('bpcharcol', 'bpchar', '{>, >=, =, <=, <}', '{A, A, W, Z, Z}'),
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('datecol', 'date', '{>, >=, =, <=, <}', '{1995-08-15, 1995-08-15, 2009-12-01, 2022-12-30, 2022-12-30}'),
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('timecol', 'time', '{>, >=, =, <=, <}', '{01:20:30, 01:20:30, 02:28:57, 06:28:31.5, 06:28:31.5}'),
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('timestampcol', 'timestamp', '{>, >=, =, <=, <}', '{1942-07-23 03:05:09, 1942-07-23 03:05:09, 1964-03-24 19:26:45, 1984-01-20 22:42:21, 1984-01-20 22:42:21}'),
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('timestampcol', 'timestamptz', '{>, >=, =, <=, <}', '{1942-07-23 03:05:09, 1942-07-23 03:05:09, 1964-03-24 19:26:45, 1984-01-20 22:42:21, 1984-01-20 22:42:21}'),
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('timestampcol', 'timestamptz', '{>, >=, =, <=, <}', '{1942-07-23 03:05:09, 1942-07-23 03:05:09, 1964-03-24 19:26:45, 1984-01-20 22:42:21, 1984-01-20 22:42:21}'),
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('timestamptzcol', 'timestamptz', '{>, >=, =, <=, <}', '{1972-10-10 03:00:00-04, 1972-10-10 03:00:00-04, 1972-10-19 09:00:00-07, 1972-11-20 19:00:00-03, 1972-11-20 19:00:00-03}'),
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('intervalcol', 'interval', '{>, >=, =, <=, <}', '{00:00:00, 00:00:00, 1 mons 13 days 12:24, 2 mons 23 days 07:48:00, 1 year}'),
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('timetzcol', 'timetz', '{>, >=, =, <=, <}', '{01:30:20+02, 01:30:20+02, 01:35:50+02, 23:55:05+02, 23:55:05+02}'),
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('bitcol', 'bit(10)', '{>, >=, =, <=, <}', '{0000000010, 0000000010, 0011011110, 1111111000, 1111111000}'),
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('varbitcol', 'varbit(16)', '{>, >=, =, <=, <}', '{0000000000000100, 0000000000000100, 0001010001100110, 1111111111111000, 1111111111111000}'),
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('numericcol', 'numeric', '{>, >=, =, <=, <}', '{0.00, 0.01, 2268164.347826086956521739130434782609, 99470151.9, 99470151.9}'),
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('uuidcol', 'uuid', '{>, >=, =, <=, <}', '{00040004-0004-0004-0004-000400040004, 00040004-0004-0004-0004-000400040004, 52225222-5222-5222-5222-522252225222, 99989998-9998-9998-9998-999899989998, 99989998-9998-9998-9998-999899989998}'),
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('int4rangecol', 'int4range', '{<<, &<, &&, &>, >>, @>, <@, =, <, <=, >, >=}', '{"[10000,)","[10000,)","(,]","[3,4)","[36,44)","(1500,1501]","[3,4)","[222,1222)","[36,44)","[43,1043)","[367,4466)","[519,)"}'),
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('int4rangecol', 'int4range', '{@>, <@, =, <=, >, >=}', '{empty, empty, empty, empty, empty, empty}'),
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('int4rangecol', 'int4', '{@>}', '{1500}'),
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('lsncol', 'pg_lsn', '{>, >=, =, <=, <, IS, IS NOT}', '{0/1200, 0/1200, 44/455222, 198/1999799, 198/1999799, NULL, NULL}'),
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('boxcol', 'point', '{@>}', '{"(500,43)"}'),
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('boxcol', 'box', '{<<, &<, &&, &>, >>, <<|, &<|, |&>, |>>, @>, <@, ~=}', '{"((1000,2000),(3000,4000))","((1,2),(3000,4000))","((1,2),(3000,4000))","((1,2),(3000,4000))","((1,2),(3,4))","((1000,2000),(3000,4000))","((1,2000),(3,4000))","((1000,2),(3000,4))","((1,2),(3,4))","((1,2),(300,400))","((1,2),(3000,4000))","((222,1222),(44,45))"}');
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DO $x$
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DECLARE
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r record;
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r2 record;
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cond text;
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count int;
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mismatch bool;
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BEGIN
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FOR r IN SELECT colname, oper, typ, value[ordinality] FROM brinopers, unnest(op) WITH ORDINALITY AS oper LOOP
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mismatch := false;
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-- prepare the condition
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IF r.value IS NULL THEN
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cond := format('%I %s %L', r.colname, r.oper, r.value);
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ELSE
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cond := format('%I %s %L::%s', r.colname, r.oper, r.value, r.typ);
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END IF;
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-- run the query using the brin index
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CREATE TEMP TABLE brin_result (cid tid);
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SET enable_seqscan = 0;
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SET enable_bitmapscan = 1;
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EXECUTE format($y$INSERT INTO brin_result SELECT ctid FROM brintest WHERE %s $y$, cond);
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-- run the query using a seqscan
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CREATE TEMP TABLE brin_result_ss (cid tid);
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SET enable_seqscan = 1;
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SET enable_bitmapscan = 0;
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EXECUTE format($y$INSERT INTO brin_result_ss SELECT ctid FROM brintest WHERE %s $y$, cond);
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-- make sure both return the same results
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PERFORM * FROM brin_result EXCEPT ALL SELECT * FROM brin_result_ss;
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GET DIAGNOSTICS count = ROW_COUNT;
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IF count <> 0 THEN
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mismatch = true;
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END IF;
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PERFORM * FROM brin_result_ss EXCEPT ALL SELECT * FROM brin_result;
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GET DIAGNOSTICS count = ROW_COUNT;
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IF count <> 0 THEN
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mismatch = true;
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END IF;
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-- report the results of each scan to make the differences obvious
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IF mismatch THEN
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RAISE WARNING 'something not right in %: count %', r, count;
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SET enable_seqscan = 1;
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SET enable_bitmapscan = 0;
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FOR r2 IN EXECUTE 'SELECT ' || r.colname || ' FROM brintest WHERE ' || cond LOOP
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RAISE NOTICE 'seqscan: %', r2;
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END LOOP;
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SET enable_seqscan = 0;
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SET enable_bitmapscan = 1;
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FOR r2 IN EXECUTE 'SELECT ' || r.colname || ' FROM brintest WHERE ' || cond LOOP
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RAISE NOTICE 'bitmapscan: %', r2;
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END LOOP;
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END IF;
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-- make sure it was a sensible test case
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SELECT count(*) INTO count FROM brin_result;
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IF count = 0 THEN RAISE WARNING 'no results for %', r; END IF;
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-- drop the temporary tables
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DROP TABLE brin_result;
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DROP TABLE brin_result_ss;
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END LOOP;
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END;
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$x$;
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INSERT INTO brintest SELECT
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repeat(stringu1, 42)::bytea,
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substr(stringu1, 1, 1)::"char",
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stringu1::name, 142857 * tenthous,
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thousand,
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twothousand,
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repeat(stringu1, 42),
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unique1::oid,
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format('(%s,%s)', tenthous, twenty)::tid,
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(four + 1.0)/(hundred+1),
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odd::float8 / (tenthous + 1),
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format('%s:00:%s:00:%s:00', to_hex(odd), to_hex(even), to_hex(hundred))::macaddr,
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inet '10.2.3.4' + tenthous,
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cidr '10.2.3/24' + tenthous,
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substr(stringu1, 1, 1)::bpchar,
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date '1995-08-15' + tenthous,
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time '01:20:30' + thousand * interval '18.5 second',
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timestamp '1942-07-23 03:05:09' + tenthous * interval '36.38 hours',
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timestamptz '1972-10-10 03:00' + thousand * interval '1 hour',
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justify_days(justify_hours(tenthous * interval '12 minutes')),
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timetz '01:30:20' + hundred * interval '15 seconds',
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thousand::bit(10),
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tenthous::bit(16)::varbit,
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tenthous::numeric(36,30) * fivethous * even / (hundred + 1),
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format('%s%s-%s-%s-%s-%s%s%s', to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'), to_char(tenthous, 'FM0000'))::uuid,
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int4range(thousand, twothousand),
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format('%s/%s%s', odd, even, tenthous)::pg_lsn,
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box(point(odd, even), point(thousand, twothousand))
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FROM tenk1 LIMIT 5 OFFSET 5;
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SELECT brin_summarize_new_values('brinidx'::regclass);
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UPDATE brintest SET int8col = int8col * int4col;
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UPDATE brintest SET textcol = '' WHERE textcol IS NOT NULL;
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