Adding upstream version 15.5.upstream/15.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 437 insertions, 0 deletions

diff --git a/src/test/regress/sql/create_index_spgist.sql b/src/test/regress/sql/create_index_spgist.sql
new file mode 100644
index 0000000..660bfc6
--- /dev/null
+++ b/src/test/regress/sql/create_index_spgist.sql
@@ -0,0 +1,437 @@
+--
+-- SP-GiST index tests
+--
+
+CREATE TABLE quad_point_tbl AS
+    SELECT point(unique1,unique2) AS p FROM tenk1;
+
+INSERT INTO quad_point_tbl
+    SELECT '(333.0,400.0)'::point FROM generate_series(1,1000);
+
+INSERT INTO quad_point_tbl VALUES (NULL), (NULL), (NULL);
+
+CREATE INDEX sp_quad_ind ON quad_point_tbl USING spgist (p);
+
+CREATE TABLE kd_point_tbl AS SELECT * FROM quad_point_tbl;
+
+CREATE INDEX sp_kd_ind ON kd_point_tbl USING spgist (p kd_point_ops);
+
+CREATE TABLE radix_text_tbl AS
+    SELECT name AS t FROM road WHERE name !~ '^[0-9]';
+
+INSERT INTO radix_text_tbl
+    SELECT 'P0123456789abcdef' FROM generate_series(1,1000);
+INSERT INTO radix_text_tbl VALUES ('P0123456789abcde');
+INSERT INTO radix_text_tbl VALUES ('P0123456789abcdefF');
+
+CREATE INDEX sp_radix_ind ON radix_text_tbl USING spgist (t);
+
+-- get non-indexed results for comparison purposes
+
+SET enable_seqscan = ON;
+SET enable_indexscan = OFF;
+SET enable_bitmapscan = OFF;
+
+SELECT count(*) FROM quad_point_tbl WHERE p IS NULL;
+
+SELECT count(*) FROM quad_point_tbl WHERE p IS NOT NULL;
+
+SELECT count(*) FROM quad_point_tbl;
+
+SELECT count(*) FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+
+SELECT count(*) FROM quad_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+
+SELECT count(*) FROM quad_point_tbl WHERE p << '(5000, 4000)';
+
+SELECT count(*) FROM quad_point_tbl WHERE p >> '(5000, 4000)';
+
+SELECT count(*) FROM quad_point_tbl WHERE p <<| '(5000, 4000)';
+
+SELECT count(*) FROM quad_point_tbl WHERE p |>> '(5000, 4000)';
+
+SELECT count(*) FROM quad_point_tbl WHERE p ~= '(4585, 365)';
+
+CREATE TEMP TABLE quad_point_tbl_ord_seq1 AS
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM quad_point_tbl;
+
+CREATE TEMP TABLE quad_point_tbl_ord_seq2 AS
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+
+CREATE TEMP TABLE quad_point_tbl_ord_seq3 AS
+SELECT row_number() OVER (ORDER BY p <-> '333,400') n, p <-> '333,400' dist, p
+FROM quad_point_tbl WHERE p IS NOT NULL;
+
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdef';
+
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcde';
+
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdefF';
+
+SELECT count(*) FROM radix_text_tbl WHERE t <    'Aztec                         Ct  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t ~<~  'Aztec                         Ct  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t <=   'Aztec                         Ct  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t ~<=~ 'Aztec                         Ct  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Aztec                         Ct  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Worth                         St  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t >=   'Worth                         St  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t ~>=~ 'Worth                         St  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t >    'Worth                         St  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t ~>~  'Worth                         St  ';
+
+SELECT count(*) FROM radix_text_tbl WHERE t ^@  'Worth';
+
+-- Now check the results from plain indexscan
+SET enable_seqscan = OFF;
+SET enable_indexscan = ON;
+SET enable_bitmapscan = OFF;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p IS NULL;
+SELECT count(*) FROM quad_point_tbl WHERE p IS NULL;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p IS NOT NULL;
+SELECT count(*) FROM quad_point_tbl WHERE p IS NOT NULL;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl;
+SELECT count(*) FROM quad_point_tbl;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+SELECT count(*) FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+SELECT count(*) FROM quad_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p << '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p << '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p >> '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p >> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p <<| '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p <<| '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p |>> '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p |>> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p ~= '(4585, 365)';
+SELECT count(*) FROM quad_point_tbl WHERE p ~= '(4585, 365)';
+
+EXPLAIN (COSTS OFF)
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM quad_point_tbl;
+CREATE TEMP TABLE quad_point_tbl_ord_idx1 AS
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM quad_point_tbl;
+SELECT * FROM quad_point_tbl_ord_seq1 seq FULL JOIN quad_point_tbl_ord_idx1 idx
+ON seq.n = idx.n
+WHERE seq.dist IS DISTINCT FROM idx.dist;
+
+EXPLAIN (COSTS OFF)
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+CREATE TEMP TABLE quad_point_tbl_ord_idx2 AS
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+SELECT * FROM quad_point_tbl_ord_seq2 seq FULL JOIN quad_point_tbl_ord_idx2 idx
+ON seq.n = idx.n
+WHERE seq.dist IS DISTINCT FROM idx.dist;
+
+EXPLAIN (COSTS OFF)
+SELECT row_number() OVER (ORDER BY p <-> '333,400') n, p <-> '333,400' dist, p
+FROM quad_point_tbl WHERE p IS NOT NULL;
+CREATE TEMP TABLE quad_point_tbl_ord_idx3 AS
+SELECT row_number() OVER (ORDER BY p <-> '333,400') n, p <-> '333,400' dist, p
+FROM quad_point_tbl WHERE p IS NOT NULL;
+SELECT * FROM quad_point_tbl_ord_seq3 seq FULL JOIN quad_point_tbl_ord_idx3 idx
+ON seq.n = idx.n
+WHERE seq.dist IS DISTINCT FROM idx.dist;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+SELECT count(*) FROM kd_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+SELECT count(*) FROM kd_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p << '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p << '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p >> '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p >> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p <<| '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p <<| '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p |>> '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p |>> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p ~= '(4585, 365)';
+SELECT count(*) FROM kd_point_tbl WHERE p ~= '(4585, 365)';
+
+EXPLAIN (COSTS OFF)
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM kd_point_tbl;
+CREATE TEMP TABLE kd_point_tbl_ord_idx1 AS
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM kd_point_tbl;
+SELECT * FROM quad_point_tbl_ord_seq1 seq FULL JOIN kd_point_tbl_ord_idx1 idx
+ON seq.n = idx.n
+WHERE seq.dist IS DISTINCT FROM idx.dist;
+
+EXPLAIN (COSTS OFF)
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM kd_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+CREATE TEMP TABLE kd_point_tbl_ord_idx2 AS
+SELECT row_number() OVER (ORDER BY p <-> '0,0') n, p <-> '0,0' dist, p
+FROM kd_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+SELECT * FROM quad_point_tbl_ord_seq2 seq FULL JOIN kd_point_tbl_ord_idx2 idx
+ON seq.n = idx.n
+WHERE seq.dist IS DISTINCT FROM idx.dist;
+
+EXPLAIN (COSTS OFF)
+SELECT row_number() OVER (ORDER BY p <-> '333,400') n, p <-> '333,400' dist, p
+FROM kd_point_tbl WHERE p IS NOT NULL;
+CREATE TEMP TABLE kd_point_tbl_ord_idx3 AS
+SELECT row_number() OVER (ORDER BY p <-> '333,400') n, p <-> '333,400' dist, p
+FROM kd_point_tbl WHERE p IS NOT NULL;
+SELECT * FROM quad_point_tbl_ord_seq3 seq FULL JOIN kd_point_tbl_ord_idx3 idx
+ON seq.n = idx.n
+WHERE seq.dist IS DISTINCT FROM idx.dist;
+
+-- test KNN scan with included columns
+-- the distance numbers are not exactly the same across platforms
+SET extra_float_digits = 0;
+CREATE INDEX ON quad_point_tbl_ord_seq1 USING spgist(p) INCLUDE(dist);
+EXPLAIN (COSTS OFF)
+SELECT p, dist FROM quad_point_tbl_ord_seq1 ORDER BY p <-> '0,0' LIMIT 10;
+SELECT p, dist FROM quad_point_tbl_ord_seq1 ORDER BY p <-> '0,0' LIMIT 10;
+RESET extra_float_digits;
+
+-- check ORDER BY distance to NULL
+SELECT (SELECT p FROM kd_point_tbl ORDER BY p <-> pt, p <-> '0,0' LIMIT 1)
+FROM (VALUES (point '1,2'), (NULL), ('1234,5678')) pts(pt);
+
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdef';
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdef';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcde';
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcde';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdefF';
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdefF';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t <    'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t <    'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~<~  'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~<~  'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t <=   'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t <=   'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~<=~ 'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~<=~ 'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t >=   'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t >=   'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~>=~ 'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~>=~ 'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t >    'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t >    'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~>~  'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~>~  'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ^@	 'Worth';
+SELECT count(*) FROM radix_text_tbl WHERE t ^@	 'Worth';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE starts_with(t, 'Worth');
+SELECT count(*) FROM radix_text_tbl WHERE starts_with(t, 'Worth');
+
+-- Now check the results from bitmap indexscan
+SET enable_seqscan = OFF;
+SET enable_indexscan = OFF;
+SET enable_bitmapscan = ON;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p IS NULL;
+SELECT count(*) FROM quad_point_tbl WHERE p IS NULL;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p IS NOT NULL;
+SELECT count(*) FROM quad_point_tbl WHERE p IS NOT NULL;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl;
+SELECT count(*) FROM quad_point_tbl;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+SELECT count(*) FROM quad_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+SELECT count(*) FROM quad_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p << '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p << '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p >> '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p >> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p <<| '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p <<| '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p |>> '(5000, 4000)';
+SELECT count(*) FROM quad_point_tbl WHERE p |>> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM quad_point_tbl WHERE p ~= '(4585, 365)';
+SELECT count(*) FROM quad_point_tbl WHERE p ~= '(4585, 365)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+SELECT count(*) FROM kd_point_tbl WHERE p <@ box '(200,200,1000,1000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+SELECT count(*) FROM kd_point_tbl WHERE box '(200,200,1000,1000)' @> p;
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p << '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p << '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p >> '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p >> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p <<| '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p <<| '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p |>> '(5000, 4000)';
+SELECT count(*) FROM kd_point_tbl WHERE p |>> '(5000, 4000)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM kd_point_tbl WHERE p ~= '(4585, 365)';
+SELECT count(*) FROM kd_point_tbl WHERE p ~= '(4585, 365)';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdef';
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdef';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcde';
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcde';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdefF';
+SELECT count(*) FROM radix_text_tbl WHERE t = 'P0123456789abcdefF';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t <    'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t <    'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~<~  'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~<~  'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t <=   'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t <=   'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~<=~ 'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~<=~ 'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Aztec                         Ct  ';
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Aztec                         Ct  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t =    'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t >=   'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t >=   'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~>=~ 'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~>=~ 'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t >    'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t >    'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ~>~  'Worth                         St  ';
+SELECT count(*) FROM radix_text_tbl WHERE t ~>~  'Worth                         St  ';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE t ^@	 'Worth';
+SELECT count(*) FROM radix_text_tbl WHERE t ^@	 'Worth';
+
+EXPLAIN (COSTS OFF)
+SELECT count(*) FROM radix_text_tbl WHERE starts_with(t, 'Worth');
+SELECT count(*) FROM radix_text_tbl WHERE starts_with(t, 'Worth');
+
+RESET enable_seqscan;
+RESET enable_indexscan;
+RESET enable_bitmapscan;