Parse ''0'::bigint' in postgre

Author: JaBistDuNarrisch

src/Migrator.Tests/Providers/PostgreSQL/PostgreSQLTransformationProvider_GetColumns_DefaultValueTests.cs

@@ -70,6 +70,7 @@ public void GetColumns_DefaultValues_Succeeds()
         const string int32ColumnName1 = "int32column1";
         const string int64ColumnName1 = "int64column1";
         const string int64ColumnName2 = "int64column2";
+        const string int64ColumnName3 = "int64column3";
         const string stringColumnName1 = "stringcolumn1";
         const string binaryColumnName1 = "binarycolumn1";
         const string doubleColumnName1 = "doublecolumn1";
@@ -88,6 +89,8 @@ public void GetColumns_DefaultValues_Succeeds()
             new Column(int32ColumnName1, DbType.Int32, defaultValue: 43),
             new Column(int64ColumnName1, DbType.Int64, defaultValue: 88),
             new Column(int64ColumnName2, DbType.Int64, defaultValue: 0),
+            // converted in postgre to ''0'::bigint'
+            new Column(int64ColumnName3, DbType.Int64, defaultValue: "0"),
             new Column(stringColumnName1, DbType.String, defaultValue: "Hello"),
             new Column(binaryColumnName1, DbType.Binary, defaultValue: new byte[] { 12, 32, 34 }),
             new Column(doubleColumnName1, DbType.Double, defaultValue: 84.874596567) { Precision = 19, Scale = 10 }

src/Migrator/Providers/Impl/PostgreSQL/PostgreSQLTransformationProvider.cs

@@ -607,14 +607,29 @@ public override Column[] GetColumns(string table)
             {
                 if (column.MigratorDbType == MigratorDbType.Int16 || column.MigratorDbType == MigratorDbType.Int32 || column.MigratorDbType == MigratorDbType.Int64)
                 {
+                    var match = stripSingleQuoteRegEx.Match(columnInfo.ColumnDefault);
+                    if (match.Success)
+                    {
+                        columnInfo.ColumnDefault = match.Value;
+                    }
                     column.DefaultValue = long.Parse(columnInfo.ColumnDefault.ToString());
                 }
                 else if (column.MigratorDbType == MigratorDbType.UInt16 || column.MigratorDbType == MigratorDbType.UInt32 || column.MigratorDbType == MigratorDbType.UInt64)
                 {
+                    var match = stripSingleQuoteRegEx.Match(columnInfo.ColumnDefault);
+                    if (match.Success)
+                    {
+                        columnInfo.ColumnDefault = match.Value;
+                    }
                     column.DefaultValue = ulong.Parse(columnInfo.ColumnDefault.ToString());
                 }
                 else if (column.MigratorDbType == MigratorDbType.Double || column.MigratorDbType == MigratorDbType.Single)
                 {
+                    var match = stripSingleQuoteRegEx.Match(columnInfo.ColumnDefault);
+                    if (match.Success)
+                    {
+                        columnInfo.ColumnDefault = match.Value;
+                    }
                     column.DefaultValue = double.Parse(columnInfo.ColumnDefault.ToString(), CultureInfo.InvariantCulture);
                 }
                 else if (column.MigratorDbType == MigratorDbType.Interval)
@@ -711,6 +726,11 @@ public override Column[] GetColumns(string table)
                 }
                 else if (column.MigratorDbType == MigratorDbType.Decimal)
                 {
+                    var match = stripSingleQuoteRegEx.Match(columnInfo.ColumnDefault);
+                    if (match.Success)
+                    {
+                        columnInfo.ColumnDefault = match.Value;
+                    }
                     column.DefaultValue = decimal.Parse(columnInfo.ColumnDefault, CultureInfo.InvariantCulture);
                 }
                 else if (column.MigratorDbType == MigratorDbType.String)