Index: ext/fts5/fts5_index.c ================================================================== --- ext/fts5/fts5_index.c +++ ext/fts5/fts5_index.c @@ -3900,10 +3900,11 @@ int nTerm, const u8 *pTerm ){ int nPrefix; /* Bytes of prefix compression for term */ Fts5PageWriter *pPage = &pWriter->writer; Fts5Buffer *pPgidx = &pWriter->writer.pgidx; + int nMin = MIN(pPage->term.n, nTerm); assert( p->rc==SQLITE_OK ); assert( pPage->buf.n>=4 ); assert( pPage->buf.n>4 || pWriter->bFirstTermInPage ); @@ -3941,17 +3942,17 @@ ** In this case the previous term is not available, so just write a ** copy of (pTerm/nTerm) into the parent node. This is slightly ** inefficient, but still correct. */ int n = nTerm; if( pPage->term.n ){ - n = 1 + fts5PrefixCompress(pPage->term.n, pPage->term.p, pTerm); + n = 1 + fts5PrefixCompress(nMin, pPage->term.p, pTerm); } fts5WriteBtreeTerm(p, pWriter, n, pTerm); pPage = &pWriter->writer; } }else{ - nPrefix = fts5PrefixCompress(pPage->term.n, pPage->term.p, pTerm); + nPrefix = fts5PrefixCompress(nMin, pPage->term.p, pTerm); fts5BufferAppendVarint(&p->rc, &pPage->buf, nPrefix); } /* Append the number of bytes of new data, then the term data itself ** to the page. */ Index: ext/fts5/test/fts5corrupt3.test ================================================================== --- ext/fts5/test/fts5corrupt3.test +++ ext/fts5/test/fts5corrupt3.test @@ -1431,11 +1431,122 @@ | 4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65 heck....optimize | end c19b.db }]} {} do_catchsql_test 18.1 { + INSERT INTO t1(t1) VALUES('optimize'); +} {1 {database disk image is malformed}} + +#-------------------------------------------------------------------------- +reset_db +do_test 19.0 { + sqlite3 db {} + db deserialize [decode_hexdb { +| size 28672 pagesize 4096 filename c20b.db +| page 1 offset 0 +| 0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00 SQLite format 3. +| 16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07 .....@ ........ +| 32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 ................ +| 48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 ................ +| 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ................ +| 96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d ..08...........m +| 112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00 .....N.......... +| 3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74 .........1tablet +| 3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45 2t2.CREATE TABLE +| 3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61 t2(x)V.......ta +| 3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 blet1_configt1_c +| 3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42 onfig.CREATE TAB +| 3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b LE 't1_config'(k +| 3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 PRIMARY KEY, v) +| 3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05 WITHOUT ROWID[. +| 3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64 ..!!...tablet1_d +| 3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 ocsizet1_docsize +| 3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 .CREATE TABLE 't +| 3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 1_docsize'(id IN +| 3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 TEGER PRIMARY KE +| 3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21 Y, sz BLOB)U...! +| 3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65 !.wtablet1_conte +| 3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45 ntt1_content.CRE +| 3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f ATE TABLE 't1_co +| 3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45 ntent'(id INTEGE +| 3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63 R PRIMARY KEY, c +| 3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 0)i.......-table +| 3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 t1_idxt1_idx.CRE +| 3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 ATE TABLE 't1_id +| 3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 x'(segid, term, +| 3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 pgno, PRIMARY KE +| 3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 Y(segid, term)) +| 3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 WITHOUT ROWIDU.. +| 3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 ......tablet1_da +| 3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 tat1_data.CREATE +| 3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 TABLE 't1_data' +| 4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d (id INTEGER PRIM +| 4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 ARY KEY, block B +| 4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c LOB):......ctabl +| 4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54 et1t1CREATE VIRT +| 4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49 UAL TABLE t1 USI +| 4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29 NG fts5(content) +| page 2 offset 4096 +| 0: 0d 0f 20 00 05 0e a0 00 0f e8 0e a0 0f bd 0f 34 .. ............4 +| 16: 0e b7 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +| 3744: 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01 01 ....0........... +| 3760: 01 02 01 01 03 01 01 62 8c 80 80 80 80 01 04 00 .......b........ +| 3776: 81 48 00 00 00 55 06 30 61 62 61 63 6b 08 01 04 .H...U.0aback... +| 3792: 04 6e 64 6f 6e 03 01 05 01 02 05 63 74 69 76 65 .ndon......ctive +| 3808: 08 01 02 04 6c 70 68 61 08 01 02 03 74 6f 6d 08 ....lpha....tom. +| 3824: 01 01 06 62 61 63 6b 75 70 08 01 02 05 6f 6f 6d ...backup....oom +| 3840: 65 72 08 01 01 07 63 68 61 6e 6e 65 6c 08 01 01 er....channel... +| 3856: 04 74 65 73 74 08 01 04 09 0a 09 08 07 0a 09 0b .test........... +| 3872: 0f ef 00 14 2a 00 00 00 00 01 02 02 00 02 01 01 ....*........... +| 3888: 01 02 01 01 81 01 88 80 80 80 80 01 04 00 82 06 ................ +| 3904: 00 00 00 72 06 30 61 62 61 63 6b 08 02 07 04 04 ...r.0aback..... +| 3920: 6e 64 6f 6e 08 02 05 02 05 63 74 69 76 65 04 02 ndon.....ctive.. +| 3936: 02 04 02 0b 02 04 6c 70 68 61 08 04 02 0a 02 03 ......lpha...... +| 3952: 74 6f 6d 06 02 02 02 02 09 05 02 69 63 07 02 02 tom........ic... +| 3968: 01 06 62 61 63 6b 75 70 08 02 04 02 05 6f 6f 66 ..backup.....oof +| 3984: 65 72 05 02 02 04 03 6d 65 72 08 02 08 01 07 63 er.....mer.....c +| 4000: 68 61 6e 6e 65 6c 08 02 03 01 04 74 65 73 74 08 hannel.....test. +| 4016: 02 06 04 0a 09 0d 0a 0b 07 0b 0a 08 0c 24 84 80 .............$.. +| 4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61 ......N.....0aba +| 4048: 63 6b 01 02 66 04 00 22 74 00 02 22 04 04 6e 64 ck..f...t.....nd +| 4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 06 06 00 on.............. +| 4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01 ...$............ +| page 3 offset 8192 +| 0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00 ................ +| 4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c ................ +| 4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02 ................ +| page 4 offset 12288 +| 0: 0d 0f e0 00 06 0f b6 00 0f f6 0f ec 0f d5 0f ca ................ +| 16: 0f c1 0f b6 0f 70 0f 70 00 00 00 00 00 00 00 00 .....p.p........ +| 3952: 0f e0 00 46 81 0d 61 6c 70 68 61 20 63 68 61 6e ...F..alpha chan +| 3968: 6e 65 6c 20 62 61 63 6b 75 70 20 61 62 61 6e 64 nel backup aband +| 3984: 6f 6e 20 74 65 73 74 20 61 62 61 63 6b 20 62 6f on test aback bo +| 4000: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20 omer atom alpha +| 4016: 61 63 74 69 76 65 09 07 03 00 19 61 74 6f 6d 69 active.....atomi +| 4032: 63 07 06 03 00 15 61 74 6f 6d 09 05 03 00 19 62 c.....atom.....b +| 4048: 6f 6f 66 65 72 09 04 03 00 19 61 63 74 69 76 65 oofer.....active +| 4064: 00 00 00 0c 1b 61 62 61 6e 64 6f 6e 08 02 03 00 .....abandon.... +| 4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b .abaft.....aback +| page 5 offset 16384 +| 0: 0d 0f ee 00 06 0f d6 00 0f fa 0f f4 0f e8 0f e2 ................ +| 16: 0f dc 0f d6 0f d0 0f d0 00 00 00 00 00 00 00 00 ................ +| 4048: 0f ee 00 06 0e 0a 04 07 03 00 0e 01 04 06 03 00 ................ +| 4064: 0e 01 04 05 03 00 0e 01 04 04 03 00 0e 01 00 00 ................ +| 4080: 00 06 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01 ................ +| page 6 offset 20480 +| 0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00 ................ +| 4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04 ........version. +| page 7 offset 24576 +| 0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00 ................ +| 4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c ..........rebuil +| 4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63 d...+integrity-c +| 4080: 86 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65 .eck....optimize +| end c20b.db +}]} {} + +do_catchsql_test 19.1 { INSERT INTO t1(t1) VALUES('optimize'); } {1 {database disk image is malformed}} sqlite3_fts5_may_be_corrupt 0 finish_test