Adding handling of numbers with exponent to decimal type.

mysql-test/r/type_decimal.result:
  Results for More tests
mysql-test/t/type_decimal.test:
  More tests to handle exponent cases
sql/field.cc:
  Handle string with exponent for decimal type

mysql-test/r/type_decimal.result

@@ -156,6 +156,8 @@ insert into t1 values ("-.1"),("+.1"),(".1");
 insert into t1 values ("00000000000001"),("+0000000000001"),("-0000000000001");
 insert into t1 values ("+111111111.11"),("111111111.11"),("-11111111.11");
 insert into t1 values ("-111111111.11"),("+1111111111.11"),("1111111111.11");
+insert into t1 values ("1e+1000"),("1e-1000"),("-1e+1000");
+insert into t1 values ("123.4e"),("123.4e+2"),("123.4e-2"),("123e1"),("123e+0");
 select * from t1;
 a
 0.00
@@ -176,6 +178,14 @@ a
 -99999999.99
 999999999.99
 999999999.99
+999999999.99
+0.00
+-99999999.99
+123.40
+12340.00
+1.23
+1230.00
+123.00
 drop  table t1;
 create table t1 (a decimal(10,2) unsigned);
 insert into t1 values ("0.0"),("-0.0"),("+0.0"),("01.0"),("+01.0"),("-01.0");
@@ -183,6 +193,8 @@ insert into t1 values ("-.1"),("+.1"),(".1");
 insert into t1 values ("00000000000001"),("+0000000000001"),("-0000000000001");
 insert into t1 values ("+111111111.11"),("111111111.11"),("-11111111.11");
 insert into t1 values ("-111111111.11"),("+1111111111.11"),("1111111111.11");
+insert into t1 values ("1e+1000"),("1e-1000"),("-1e+1000");
+insert into t1 values ("123.4e"),("123.4e+2"),("123.4e-2"),("123e1"),("123e+0");
 select * from t1;
 a
 0.00
@@ -203,6 +215,14 @@ a
 0.00
 99999999.99
 99999999.99
+99999999.99
+0.00
+0.00
+123.40
+12340.00
+1.23
+1230.00
+123.00
 drop  table t1;
 create table t1 (a decimal(10,2) zerofill);
 insert into t1 values ("0.0"),("-0.0"),("+0.0"),("01.0"),("+01.0"),("-01.0");
@@ -210,6 +230,8 @@ insert into t1 values ("-.1"),("+.1"),(".1");
 insert into t1 values ("00000000000001"),("+0000000000001"),("-0000000000001");
 insert into t1 values ("+111111111.11"),("111111111.11"),("-11111111.11");
 insert into t1 values ("-111111111.11"),("+1111111111.11"),("1111111111.11");
+insert into t1 values ("1e+1000"),("1e-1000"),("-1e+1000");
+insert into t1 values ("123.4e"),("123.4e+2"),("123.4e-2"),("123e1"),("123e+0");
 select * from t1;
 a
 00000000.00
@@ -230,6 +252,14 @@ a
 00000000.00
 99999999.99
 99999999.99
+99999999.99
+00000000.00
+00000000.00
+00000123.40
+00012340.00
+00000001.23
+00001230.00
+00000123.00
 drop  table t1;
 create table t1 (a decimal(10,2));
 insert into t1 values (0.0),("-0.0"),(+0.0),(01.0),(+01.0),(-01.0);
@@ -237,6 +267,8 @@ insert into t1 values (-.1),(+.1),(.1);
 insert into t1 values (00000000000001),(+0000000000001),(-0000000000001);
 insert into t1 values (+111111111.11),(111111111.11),(-11111111.11);
 insert into t1 values (-111111111.11),(+1111111111.11),(1111111111.11);
+insert into t1 values (1e+1000),(1e-1000),(-1e+1000);
+insert into t1 values (123.4e0),(123.4e+2),(123.4e-2),(123e1),(123e+0);
 select * from t1;
 a
 0.00
@@ -257,6 +289,14 @@ a
 -99999999.99
 999999999.99
 999999999.99
+999999999.99
+0.00
+-99999999.99
+123.40
+12340.00
+1.23
+1230.00
+123.00
 drop  table t1;
 create table t1 (a decimal);
 insert into t1 values (-99999999999999),(-1),('+1'),('01'),('+00000000000001'),('+12345678901'),(99999999999999);

mysql-test/t/type_decimal.test

@@ -160,6 +160,8 @@ insert into t1 values ("-.1"),("+.1"),(".1");
 insert into t1 values ("00000000000001"),("+0000000000001"),("-0000000000001");
 insert into t1 values ("+111111111.11"),("111111111.11"),("-11111111.11");
 insert into t1 values ("-111111111.11"),("+1111111111.11"),("1111111111.11");
+insert into t1 values ("1e+1000"),("1e-1000"),("-1e+1000");
+insert into t1 values ("123.4e"),("123.4e+2"),("123.4e-2"),("123e1"),("123e+0");
 select * from t1;
 drop  table t1;
 
@@ -169,6 +171,8 @@ insert into t1 values ("-.1"),("+.1"),(".1");
 insert into t1 values ("00000000000001"),("+0000000000001"),("-0000000000001");
 insert into t1 values ("+111111111.11"),("111111111.11"),("-11111111.11");
 insert into t1 values ("-111111111.11"),("+1111111111.11"),("1111111111.11");
+insert into t1 values ("1e+1000"),("1e-1000"),("-1e+1000");
+insert into t1 values ("123.4e"),("123.4e+2"),("123.4e-2"),("123e1"),("123e+0");
 select * from t1;
 drop  table t1;
 
@@ -178,6 +182,8 @@ insert into t1 values ("-.1"),("+.1"),(".1");
 insert into t1 values ("00000000000001"),("+0000000000001"),("-0000000000001");
 insert into t1 values ("+111111111.11"),("111111111.11"),("-11111111.11");
 insert into t1 values ("-111111111.11"),("+1111111111.11"),("1111111111.11");
+insert into t1 values ("1e+1000"),("1e-1000"),("-1e+1000");
+insert into t1 values ("123.4e"),("123.4e+2"),("123.4e-2"),("123e1"),("123e+0");
 select * from t1;
 drop  table t1;
 
@@ -189,6 +195,8 @@ insert into t1 values (-.1),(+.1),(.1);
 insert into t1 values (00000000000001),(+0000000000001),(-0000000000001);
 insert into t1 values (+111111111.11),(111111111.11),(-11111111.11);
 insert into t1 values (-111111111.11),(+1111111111.11),(1111111111.11);
+insert into t1 values (1e+1000),(1e-1000),(-1e+1000);
+insert into t1 values (123.4e0),(123.4e+2),(123.4e-2),(123e1),(123e+0);
 select * from t1;
 drop  table t1;