From: drh <>
Date: Fri, 29 May 2026 23:14:22 +0000 (+0000)
Subject: Be sure to do floating-point to text conversions in JSON to the full
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=5b98467d28aa1ceff5602b54a0cd7c0d3f1c8fb0;p=thirdparty%2Fsqlite.git

Be sure to do floating-point to text conversions in JSON to the full
17-digits.

FossilOrigin-Name: 61a776650cdc3fe632bdb1dc39f50f542b00a9e5b468180eb54b69750d0cd70c
---

diff --git a/manifest b/manifest
index 0f28fdfc7f..a436121a7c 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Rename\sthe\sext/misc/analyze.c\sextension\sto\sext/misc/diskused.c,\sto\savoid\nconfusion\swith\sthe\ssrc/analyze.c\sfile.\s\sThe\sfunction\sis\snow\scalled\n"diskused(X)"\sinstead\sof\s"analyze(X)".\s\sThe\sCLI\scommand\sis\srenamed\nfrom\s".dbstat"\sto\s".diskused".
-D 2026-05-29T14:57:38.380
+C Be\ssure\sto\sdo\sfloating-point\sto\stext\sconversions\sin\sJSON\sto\sthe\sfull\n17-digits.
+D 2026-05-29T23:14:22.751
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -374,7 +374,7 @@ F ext/misc/compress.c 8191118b9b73e7796c961790db62d35d9b0fb724b045e005a5713dc9e0
 F ext/misc/csv.c 5e9d4dd749e762c144104c0f01db5bf4458735b19081ebe481a64e589a66687a
 F ext/misc/dbdump.c 678f1b9ae2317b4473f65d03132a2482c3f4b08920799ed80feedd2941a06680
 F ext/misc/decimal.c 432e5b03a0e2a68a1846a9852a565a1b546ca9b295deda834e4653f0f5577daa
-F ext/misc/diskused.c 56433ee0d1ae21975c549e873d99d07b30b1b7fee9cd58b103797d7c7a2eeab6 w ext/misc/analyze.c
+F ext/misc/diskused.c 56433ee0d1ae21975c549e873d99d07b30b1b7fee9cd58b103797d7c7a2eeab6
 F ext/misc/eval.c 04bc9aada78c888394204b4ed996ab834b99726fb59603b0ee3ed6e049755dc1
 F ext/misc/explain.c 9670c8ff7b255eea7845abc5123a4958e74016c16990b10497e56380f91704b9
 F ext/misc/fileio.c 936c0a7b3382a047d833ad33f62ba59a3847b79ea745bf529797cd344966fbb0
@@ -699,7 +699,7 @@ F src/hash.h 46b92795a95bfefb210f52f0c316e9d7cdbcdd7e7fcfb0d8be796d3a5767cddf
 F src/hwtime.h 21c2cf1f736e7b97502c3674d0c386db3f06870d6f10d0cf8174e2a4b8cb726e
 F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
 F src/insert.c 8dbc22f6ddcc5f0af3abf11daeb89b1978f00059cda15ebc61251fa7724fc7ee
-F src/json.c 83122c47ac1c86a3870398e872b1d1afa6439f46fdb92975aa435267771c7ee4
+F src/json.c f058c449acb9fdb1d3d1bb9f7e97b225ba773f5b6fdcec4310d3f49980125ed4
 F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
 F src/loadext.c 78d5b06f18996ffa1203129b28fea043f63a87a4117539678f1d761c30b4ff65
 F src/main.c 6180079f53ccdd784df2eddc3751f49ea7153c5959bee792b19ad9f4bdbcf437
@@ -1363,7 +1363,7 @@ F test/json/json-generator.tcl dc0dd0f393800c98658fc4c47eaa6af29d4e17527380cd286
 F test/json/json-q1.txt 65f9d1cdcc4cffa9823fb73ed936aae5658700cd001fde448f68bfb91c807307
 F test/json/json-speed-check.sh 45862b216f1f8bbf16d74e2ad6ea20c773ee77774b299a7e0f76a22eb98e91f1 x
 F test/json/jsonb-q1.txt 1e180fe6491efab307e318b22879e3a736ac9a96539bbde7911a13ee5b33abc7
-F test/json101.test cf53254f0f0c1399a01b21fc58fee0e63a12a556be91b9ee9faccdb8b82c083c
+F test/json101.test 34109fe1bfa384774ceea2a174de00e0b77e8a7b586bf30bdc9a60d7377ed15b
 F test/json102.test ea5c9811e408e115c8fc539548deef431fda4924c23cacd79dd4b783f4449f07
 F test/json103.test e626d109cd0bdb8282ec9bf755af3befa50e3e03a255362fc53433d31e1d66d4
 F test/json104.test 1b844a70cddcfa2e4cd81a5db0657b2e61e7f00868310f24f56a9ba0114348c1
@@ -2208,8 +2208,8 @@ F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee
 F tool/warnings.sh a554d13f6e5cf3760f041b87939e3d616ec6961859c3245e8ef701d1eafc2ca2
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
 F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
-P d15cd64160192119a5f12afec14dbfbb30fb38a8557cb9dc559b3f061c15687a
-R b94ebbf5e61926662e4d4c59c4ea9472
+P c7839f7a1749b38f8a36c06d93a7b59095e91ce753e8dd020de273ca8f73a239
+R 98e56ce237be73746fac763491f7390f
 U drh
-Z c87a787fc483b6eb7052d881e8ec7a13
+Z 387ede1c1d94fbfd8f5814bf5cc8fe24
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 3888c14448..4d6faa82fb 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-c7839f7a1749b38f8a36c06d93a7b59095e91ce753e8dd020de273ca8f73a239
+61a776650cdc3fe632bdb1dc39f50f542b00a9e5b468180eb54b69750d0cd70c
diff --git a/src/json.c b/src/json.c
index 3bef4ae1d2..cdf3b46248 100644
--- a/src/json.c
+++ b/src/json.c
@@ -810,7 +810,7 @@ static void jsonAppendSqlValue(
       break;
     }
     case SQLITE_FLOAT: {
-      jsonPrintf(100, p, "%!0.15g", sqlite3_value_double(pValue));
+      jsonPrintf(100, p, "%!0.17g", sqlite3_value_double(pValue));
       break;
     }
     case SQLITE_INTEGER: {
diff --git a/test/json101.test b/test/json101.test
index 7582d14a64..d98487ddf1 100644
--- a/test/json101.test
+++ b/test/json101.test
@@ -1178,4 +1178,11 @@ foreach {id start path ins set repl} {
   } [list [tx $repl]]
 }
 
+# 2026-05-29
+# JSON floating point precision
+#
+do_execsql_test json101-25.1 {
+  SELECT json_array(0.1234567890123456789)->>0 = 0.1234567890123456789;
+} 1
+
 finish_test