# 2026-10-06
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# Test cases where a %_idx list is flushed to disk mid-transaction.
#

source [file join [file dirname [info script]] vec1_common.tcl]
set testprefix vec1overflow
vec1_load db

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE v1 USING vec1(v);
  CREATE TABLE t1(x);
  WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100)
  INSERT INTO t1 SELECT random_vector(8) FROM s;
  INSERT INTO v1(cmd, arg) VALUES('rebuild', (
    SELECT vec1_train(x, '{nbucket:1}') FROM t1
  ));
  INSERT INTO v1(rowid, v) SELECT rowid, x FROM t1;
}

do_execsql_test 1.1 {
  INSERT INTO v1(rowid, v) VALUES(4294967296, random_vector(8));
  PRAGMA integrity_check;
} {ok}

reset_db
vec1_load db
do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE v1 USING vec1(v);
  CREATE TABLE t1(x);
  WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100)
  INSERT INTO t1 SELECT random_vector(8) FROM s;
  INSERT INTO v1(cmd, arg) VALUES('rebuild', (
    SELECT vec1_train(x, '{nbucket:1}') FROM t1
  ));
  INSERT INTO v1(cmd, arg) VALUES('blocksize', 1024);
}

do_execsql_test 2.1 {
  WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<200)
  INSERT INTO v1(rowid, v) SELECT i, random_vector(8) FROM s;
  SELECT count(*)>1 FROM v1_idx;
  PRAGMA integrity_check;
} {1 ok}

finish_test