SQLite

sqlite3 db2 test.db
do_test 23.1 {
  db eval {
    CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d);
    CREATE INDEX i1 ON t1(b,c);
    CREATE INDEX i2 ON t1(c,d);
    CREATE INDEX i2x ON t1(d COLLATE nocase, c DESC);
    CREATE INDEX i3 ON t1(d,b+c,c);
    CREATE TABLE t2(x INTEGER REFERENCES t1);
  }
  db2 eval {SELECT name FROM sqlite_master}
} {t1 i1 i2 i2x t2}
} {t1 i1 i2 i2x i3 t2}
do_test 23.2a {
  db eval {
    DROP INDEX i2;
    CREATE INDEX i2 ON t1(c,d,b);
  }
  capture_pragma db2 out {PRAGMA index_info(i2)}
  db2 eval {SELECT cid, name, '|' FROM out ORDER BY seqno}

} {2 c 0 BINARY 1 | 3 d 0 BINARY 1 | 1 b 0 BINARY 1 | -1 {} 0 BINARY 0 |}

# (The first column of output from PRAGMA index_xinfo is...)
# EVIDENCE-OF: R-00197-14279 The rank of the column within the index. (0
# means left-most. Key columns come before auxiliary columns.)
#
# (The second column of output from PRAGMA index_xinfo is...)
# EVIDENCE-OF: R-40889-06838 The rank of the column within the table
# EVIDENCE-OF: R-06603-49335 The rank of the column within the table
# being indexed, or -1 if the index-column is the rowid of the table
# being indexed.
# being indexed and -2 if the index is on an expression.
#
# (The third column of output from PRAGMA index_xinfo is...)
# EVIDENCE-OF: R-22751-28901 The name of the column being indexed, or
# NULL if the index-column is the rowid of the table being indexed.
# EVIDENCE-OF: R-40641-22898 The name of the column being indexed, or
# NULL if the index-column is the rowid of the table being indexed or an
# expression.
#
# (The fourth column of output from PRAGMA index_xinfo is...)
# EVIDENCE-OF: R-11847-09179 1 if the index-column is sorted in reverse
# (DESC) order by the index and 0 otherwise.
#
# (The fifth column of output from PRAGMA index_xinfo is...)
# EVIDENCE-OF: R-15313-19540 The name for the collating sequence used to
# compare values in the index-column.
#
# (The sixth column of output from PRAGMA index_xinfo is...)
# EVIDENCE-OF: R-14310-64553 1 if the index-column is a key column and 0
# if the index-column is an auxiliary column.
#
do_test 23.2c {
  db2 eval {PRAGMA index_xinfo(i2)}
} {0 2 c 0 BINARY 1 1 3 d 0 BINARY 1 2 1 b 0 BINARY 1 3 -1 {} 0 BINARY 0}
do_test 23.2d {
  db2 eval {PRAGMA index_xinfo(i2x)}
} {0 3 d 0 nocase 1 1 2 c 1 BINARY 1 2 -1 {} 0 BINARY 0}
do_test 23.2e {
  db2 eval {PRAGMA index_xinfo(i3)}
} {0 3 d 0 BINARY 1 1 -2 {} 0 BINARY 1 2 2 c 0 BINARY 1 3 -1 {} 0 BINARY 0}

# EVIDENCE-OF: R-64103-17776 PRAGMA schema.index_list(table-name); This
# pragma returns one row for each index associated with the given table.
#
# (The first column of output from PRAGMA index_list is...)
# EVIDENCE-OF: R-02753-24748 A sequence number assigned to each index
# for internal tracking purposes.

# (The fourth column of output from PRAGMA index_list is...)
# EVIDENCE-OF: R-36609-39554 "c" if the index was created by a CREATE
# INDEX statement, "u" if the index was created by a UNIQUE constraint,
# or "pk" if the index was created by a PRIMARY KEY constraint.
#
do_test 23.3 {
  db eval {
    DROP INDEX IF EXISTS i3;
    CREATE INDEX i3 ON t1(d,b,c);
  }
  capture_pragma db2 out {PRAGMA index_list(t1)}
  db2 eval {SELECT seq, name, "unique", origin, '|' FROM out ORDER BY seq}
} {0 i3 0 c | 1 i2 0 c | 2 i2x 0 c | 3 i1 0 c |}
do_test 23.4 {
  db eval {