Hi all For query: ```SQL CREATE TABLE v0 ( v1 CHAR(30), v2 CHAR(30) ); CREATE INDEX v19 ON v0 ( v2, v1 ); SELECT * FROM v0 WHERE ( v2 = ( SELECT v2 FROM v0 ORDER BY lead ( v2 ) OVER ( ) = '0' AND SUM ( v1 * ( 9223372036854775807 - v2 ) ) > v2 AND EXISTS ( SELECT * FROM v0 x WHERE v1 = v2 AND v1 != v1 ) AND NOT EXISTS ( SELECT * FROM v0 x WHERE v2 = v2 AND v2 != v2 AND v1 > v2 ) AND v2 = v1 AND v1 = 'av1 c' ) ); ``` When testing the above query with DEBUG flag on the latest development branch, Fossil: d42dbd9dfeb9233dcf9bb7af617289bc51a12379, assertion failed and program exit. The error information is shown below: ``` sqlite3: sqlite3.c:101215: sqlite3TableColumnAffinity: Assertion `iCol<pTab->nCol' failed. Aborted (core dumped) ``` Looking forward to your reply.