Spracherkennung für: .test vermutete Sprache: SQL {SQL[120] ABAP[60] Lisp[54]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_rocksdb.inc
#
# Basic HANDLER counts
#
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--disable_cursor_protocol
FLUSH STATUS;
CREATE TABLE t1 (id INT PRIMARY KEY, a VARCHAR(100), b INT,
INDEX b(b)) ENGINE=rocksdb;
INSERT INTO t1 (id,a,b) VALUES (1,'foobar',100),(2,'z',0),(3,'bar',50);
SHOW SESSION STATUS LIKE 'Handler_write%';
UPDATE t1 SET b=1000 WHERE id=1;
SHOW SESSION STATUS LIKE 'Handler_update%';
DELETE FROM t1 WHERE id=2;
SHOW SESSION STATUS LIKE 'Handler_delete%';
INSERT INTO t1 (id,b) VALUES(4,4),(5,5),(6,6),(7,7),(8,8),(9,9),(10,10);
SHOW SESSION STATUS LIKE 'Handler_write%';
FLUSH STATUS;
SELECT * FROM t1 WHERE id=8;
SHOW SESSION STATUS LIKE 'Handler_read%';
FLUSH STATUS;
SET GLOBAL rocksdb_force_flush_memtable_and_lzero_now=1;
SELECT * FROM t1 WHERE b=6;
SHOW SESSION STATUS LIKE 'Handler_read%';
FLUSH STATUS;
--sorted_result
SELECT * FROM t1;
SHOW SESSION STATUS LIKE 'Handler_read%';
FLUSH STATUS;
SELECT * FROM t1 FORCE INDEX(b) WHERE b <=5 ORDER BY b;
SHOW SESSION STATUS LIKE 'Handler_read%';
FLUSH STATUS;
SELECT * FROM t1 WHERE id >=8 ORDER BY id;
SHOW SESSION STATUS LIKE 'Handler_read%';
FLUSH STATUS;
SELECT * FROM t1 WHERE id < 8 ORDER BY id;
SHOW SESSION STATUS LIKE 'Handler_read%';
--enable_cursor_protocol
# Cleanup
DROP TABLE t1;
[Dauer der Verarbeitung: 0.11 Sekunden, vorverarbeitet 2026-10-08]