/* drop indexes */
DROP INDEX IF EXISTS index_0_0;
DROP INDEX IF EXISTS index_1_0;
DROP INDEX IF EXISTS index_1_1;
DROP INDEX IF EXISTS index_2_0;
DROP INDEX IF EXISTS index_2_1;
DROP INDEX IF EXISTS index_3_0;
DROP INDEX IF EXISTS index_3_1;
DROP INDEX IF EXISTS index_4_0;
DROP INDEX IF EXISTS index_4_1;
DROP INDEX IF EXISTS index_5_0;
DROP INDEX IF EXISTS index_5_1;
DROP INDEX IF EXISTS index_6_0;
DROP INDEX IF EXISTS index_6_1;
DROP INDEX IF EXISTS index_7_0;
DROP INDEX IF EXISTS index_7_1;
DROP INDEX IF EXISTS index_8_0;
DROP INDEX IF EXISTS index_8_1;
DROP INDEX IF EXISTS index_9_0;
DROP INDEX IF EXISTS index_9_1;
DROP INDEX IF EXISTS index_10_0;
DROP INDEX IF EXISTS index_10_1;
DROP INDEX IF EXISTS index_11_0;
DROP INDEX IF EXISTS index_11_1;
DROP INDEX IF EXISTS index_12_0;
DROP INDEX IF EXISTS index_12_1;
DROP INDEX IF EXISTS index_13_0;
DROP INDEX IF EXISTS index_13_1;
DROP INDEX IF EXISTS index_14_0;
DROP INDEX IF EXISTS index_14_1;
DROP INDEX IF EXISTS index_15_0;
DROP INDEX IF EXISTS index_15_1;

/* create indexes */
CREATE INDEX index_0_0 ON py_phrase_0(s0, y0);
CREATE INDEX index_1_0 ON py_phrase_1(s0, y0, s1, y1);
CREATE INDEX index_1_1 ON py_phrase_1(s0, s1, y1);
CREATE INDEX index_2_0 ON py_phrase_2(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_2_1 ON py_phrase_2(s0, s1, s2, y2);
CREATE INDEX index_3_0 ON py_phrase_3(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_3_1 ON py_phrase_3(s0, s1, s2, y2);
CREATE INDEX index_4_0 ON py_phrase_4(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_4_1 ON py_phrase_4(s0, s1, s2, y2);
CREATE INDEX index_5_0 ON py_phrase_5(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_5_1 ON py_phrase_5(s0, s1, s2, y2);
CREATE INDEX index_6_0 ON py_phrase_6(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_6_1 ON py_phrase_6(s0, s1, s2, y2);
CREATE INDEX index_7_0 ON py_phrase_7(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_7_1 ON py_phrase_7(s0, s1, s2, y2);
CREATE INDEX index_8_0 ON py_phrase_8(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_8_1 ON py_phrase_8(s0, s1, s2, y2);
CREATE INDEX index_9_0 ON py_phrase_9(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_9_1 ON py_phrase_9(s0, s1, s2, y2);
CREATE INDEX index_10_0 ON py_phrase_10(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_10_1 ON py_phrase_10(s0, s1, s2, y2);
CREATE INDEX index_11_0 ON py_phrase_11(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_11_1 ON py_phrase_11(s0, s1, s2, y2);
CREATE INDEX index_12_0 ON py_phrase_12(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_12_1 ON py_phrase_12(s0, s1, s2, y2);
CREATE INDEX index_13_0 ON py_phrase_13(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_13_1 ON py_phrase_13(s0, s1, s2, y2);
CREATE INDEX index_14_0 ON py_phrase_14(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_14_1 ON py_phrase_14(s0, s1, s2, y2);
CREATE INDEX index_15_0 ON py_phrase_15(s0, y0, s1, y1, s2, y2);
CREATE INDEX index_15_1 ON py_phrase_15(s0, s1, s2, y2);

/* optimize database */
VACUUM;