diff --git a/manifest b/manifest
index c1d1fe51eb..990258fc90 100644
--- a/manifest
+++ b/manifest
@@ -1,6 +1,6 @@
 B 7a876209a678a34c198b54ceef9e3c041f128a14dc73357f6a57cadadaa6cf7b
-C Improvements\sto\sthe\smin()/max()\soptimization\sso\sthat\sit\sis\sable\sto\suse\nindexes\swhere\sterms\sare\sconstrained\sby\sIN\soperators.
-D 2020-07-14T23:58:04.562
+C New\stest\scases\sfor\sdecimal\sand\sieee754.
+D 2020-07-15T02:15:03.726
 F Makefile.in 19374a5db06c3199ec1bab71ab74a103d8abf21053c05e9389255dc58083f806
 F Makefile.msc 48f5a3fc32672c09ad73795749f6253e406a31526935fbbffd8f021108d54574
 F autoconf/Makefile.am a8d1d24affe52ebf8d7ddcf91aa973fa0316618ab95bb68c87cabf8faf527dc8
@@ -36,7 +36,7 @@ F src/window.c 0dec178bfa541c757d15a2be78f34aea36393a0966600366810e5f8739ccf370
 F test/altertab.test b8b2104212e8ea87c75c3cbe3cb78ed7236a6c828ee2e59ed09d3dbe9812d002
 F test/busy2.test 415364312743992641f9bf679c84918327296067f85a5d00012b339dc35acbd7
 F test/corruptL.test 01cfda6b28f463d1713ac72a101e65549250568129ce5317ec6729729ecaf477
-F test/decimal.test 12739a01bdba4c4d79f95b323e6b67b9fad1ab6ffb56116bd2b9c81a5b19e1d9
+F test/decimal.test fcf403fd5585f47342234e153c4a4338cd737b8e0884ac66fc484df47dbcf1a7
 F test/filter1.test 6c483ecf7886c8843a8612c021aa23f33c581f584151f251842b3a3592c95ac8
 F test/fkey5.test 321fd41e8754389526b2b8e8769348dc9ff23a65d4d48b19c27df17459e82ec5
 F test/fts3corrupt4.test b77dcdfa207c11d7966e71837c518cb0639c78fd109dec89c65d45a3bfd36701
@@ -52,8 +52,7 @@ F tool/mksqlite3c.tcl f4ef476510eca4124c874a72029f1e01bc54a896b1724e8f9eef0d8bfa
 F tool/mksqlite3h.tcl 1f5e4a1dbbbc43c83cc6e74fe32c6c620502240b66c7c0f33a51378e78fc4edf
 F tool/showlocks.c 9cc5e66d4ebbf2d194f39db2527ece92077e86ae627ddd233ee48e16e8142564
 F tool/speed-check.sh 615cbdf50f1409ef3bbf9f682e396df80f49d97ed93ed3e61c8e91fae6afde58
-P 5041f6a1c439b43c654e72a391517c115e222ef0e9a565907b03149b535e92c8 81e6450980ee745686aee5e2b84672d3c8404a041c82c658aa562013294b8628
-R d75719dea560c982e336a12adb26b892
-T +closed 81e6450980ee745686aee5e2b84672d3c8404a041c82c658aa562013294b8628
+P b8ba2f17f938c03543a89dd29d6987163f7a4085a51de1aa14ea5504501c4f72
+R 547435ff5d0ee8e51c74084baddf9d1e
 U drh
-Z d00d1173d8f504465fb89fc156c0fa9a
+Z 477e5f7b221518b2a1d3db972ec3b320
diff --git a/manifest.uuid b/manifest.uuid
index 56592a3be8..5308665f6f 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-b8ba2f17f938c03543a89dd29d6987163f7a4085a51de1aa14ea5504501c4f72
\ No newline at end of file
+73d62f82f94347c60e026bc9cb859fec2d8b5f0c756df0c4941f11817234bff8
\ No newline at end of file
diff --git a/test/decimal.test b/test/decimal.test
index 6fb15340f8..a2e57997dd 100644
--- a/test/decimal.test
+++ b/test/decimal.test
@@ -15,7 +15,7 @@ source $testdir/tester.tcl
 set testprefix decimal
 
 if {[catch {load_static_extension db decimal} error]} {
-  puts "Skipping zipfile tests, hit load error: $error"
+  puts "Skipping decimal tests, hit load error: $error"
   finish_test; return
 }
 
@@ -138,5 +138,49 @@ do_execsql_test 5103 {
   SELECT decimal_mul('1234.0000','2');
 } {2468}
 
+if {[catch {load_static_extension db ieee754} error]} {
+  puts "Skipping ieee754 tests, hit load error: $error"
+  finish_test; return
+}
+
+do_execsql_test 6000 {
+  CREATE TABLE pow2(x INTEGER PRIMARY KEY, v TEXT);
+  WITH RECURSIVE c(x,v) AS (
+    VALUES(0,'1')
+    UNION ALL
+    SELECT x+1, decimal_mul(v,'2') FROM c WHERE x+1<=971
+  ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+  WITH RECURSIVE c(x,v) AS (
+    VALUES(-1,'0.5')
+    UNION ALL
+    SELECT x-1, decimal_mul(v,'0.5') FROM c WHERE x-1>=-1075
+  ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+} {}
+do_execsql_test 6010 {
+  WITH c(n) AS (SELECT ieee754_from_blob(x'0000000000000001'))
+SELECT decimal_mul(ieee754_mantissa(c.n),pow2.v)
+  FROM pow2, c WHERE pow2.x=ieee754_exponent(c.n);
+} {0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004940656458412465441765687928682213723650598026143247644255856825006755072702087518652998363616359923797965646954457177309266567103559397963987747960107818781263007131903114045278458171678489821036887186360569987307230500063874091535649843873124733972731696151400317153853980741262385655911710266585566867681870395603106249319452715914924553293054565444011274801297099995419319894090804165633245247571478690147267801593552386115501348035264934720193790268107107491703332226844753335720832431936092382893458368060106011506169809753078342277318329247904982524730776375927247874656084778203734469699533647017972677717585125660551199131504891101451037862738167250955837389733598993664809941164205702637090279242767544565229087538682506419718265533447265625}
+do_execsql_test 6020 {
+  WITH c(n) AS (SELECT ieee754_from_blob(x'7fefffffffffffff'))
+SELECT decimal_mul(ieee754_mantissa(c.n),pow2.v)
+  FROM pow2, c WHERE pow2.x=ieee754_exponent(c.n);
+} {179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368}
+
+do_execsql_test 6100 {
+  SELECT ieee754(ieee754_from_blob(x'0000000000000001'));
+} {ieee754(1,-1074)}
+do_execsql_test 6110 {
+  SELECT ieee754(ieee754_from_blob(x'7fefffffffffffff'));
+} {ieee754(9007199254740991,971)}
+do_execsql_test 6120 {
+  SELECT printf('%.8e',ieee754_from_blob(x'0000000000000001'));
+} {4.94065646e-324}
+do_execsql_test 6130 {
+  SELECT printf('%.8e',ieee754_from_blob(x'ffefffffffffffff'));
+} {-1.79769313e+308}
+
+
+
 
 finish_test