Support for functions (DNET-760).

Author: cincuranet

Provider/src/FirebirdSql.Data.FirebirdClient/Isql/FbBatchExecution.cs

@@ -129,6 +129,7 @@ public void Execute(bool autoCommit = true)
 						case SqlStatementType.AlterDatabase:
 						case SqlStatementType.AlterDomain:
 						case SqlStatementType.AlterException:
+						case SqlStatementType.AlterFunction:
 						case SqlStatementType.AlterIndex:
 						case SqlStatementType.AlterProcedure:
 						case SqlStatementType.AlterRole:
@@ -140,6 +141,7 @@ public void Execute(bool autoCommit = true)
 						case SqlStatementType.CreateCollation:
 						case SqlStatementType.CreateDomain:
 						case SqlStatementType.CreateException:
+						case SqlStatementType.CreateFunction:
 						case SqlStatementType.CreateGenerator:
 						case SqlStatementType.CreateIndex:
 						case SqlStatementType.CreateProcedure:
@@ -180,6 +182,7 @@ public void Execute(bool autoCommit = true)
 						case SqlStatementType.Open:
 						case SqlStatementType.Prepare:
 						case SqlStatementType.Revoke:
+						case SqlStatementType.RecreateFunction:
 						case SqlStatementType.RecreateProcedure:
 						case SqlStatementType.RecreateTable:
 						case SqlStatementType.RecreateTrigger:

Provider/src/FirebirdSql.Data.FirebirdClient/Isql/FbScript.cs

@@ -150,6 +150,10 @@ static bool IsSetTermStatement(string statement, out string newTerm)
 					{
 						return SqlStatementType.AlterException;
 					}
+					if (sqlStatement.StartsWith("ALTER FUNCTION", StringComparison.OrdinalIgnoreCase))
+					{
+						return SqlStatementType.AlterFunction;
+					}
 					if (sqlStatement.StartsWith("ALTER INDEX", StringComparison.OrdinalIgnoreCase))
 					{
 						return SqlStatementType.AlterIndex;
@@ -215,6 +219,11 @@ static bool IsSetTermStatement(string statement, out string newTerm)
 					{
 						return SqlStatementType.CreateException;
 					}
+					if (sqlStatement.StartsWith("CREATE FUNCTION", StringComparison.OrdinalIgnoreCase) ||
+						sqlStatement.StartsWith("CREATE OR ALTER FUNCTION", StringComparison.OrdinalIgnoreCase))
+					{
+						return SqlStatementType.CreateFunction;
+					}
 					if (sqlStatement.StartsWith("CREATE GENERATOR", StringComparison.OrdinalIgnoreCase))
 					{
 						return SqlStatementType.CreateGenerator;
@@ -447,6 +456,10 @@ static bool IsSetTermStatement(string statement, out string newTerm)
 					{
 						return SqlStatementType.Revoke;
 					}
+					if (sqlStatement.StartsWith("RECREATE FUNCTION", StringComparison.OrdinalIgnoreCase))
+					{
+						return SqlStatementType.RecreateFunction;
+					}
 					if (sqlStatement.StartsWith("RECREATE PROCEDURE", StringComparison.OrdinalIgnoreCase))
 					{
 						return SqlStatementType.RecreateProcedure;

Provider/src/FirebirdSql.Data.FirebirdClient/Isql/SqlStatementType.cs

@@ -52,6 +52,11 @@ public enum SqlStatementType
 		/// </summary>
 		AlterException,
 
+		/// <summary>
+		/// Represents the SQL statement: <b>ALTER FUNCTION</b>
+		/// </summary>
+		AlterFunction,
+
 		/// <summary>
 		/// Represents the SQL statement: <b>ALTER INDEX</b>
 		/// </summary>
@@ -127,6 +132,11 @@ public enum SqlStatementType
 		/// </summary>
 		CreateException,
 
+		/// <summary>
+		/// Represents the SQL statement: <b>CREATE FUNCTION</b>
+		/// </summary>
+		CreateFunction,
+
 		/// <summary>
 		/// Represents the SQL statement: <b>CREATE GENERATOR</b>
 		/// </summary>
@@ -352,6 +362,11 @@ public enum SqlStatementType
 		/// </summary>
 		Prepare,
 
+		/// <summary>
+		/// Represents the SQL statement: <b>RECREATE FUNCTION</b>
+		/// </summary>
+		RecreateFunction,
+
 		/// <summary>
 		/// Represents the SQL statement: <b>RECREATE PROCEDURE</b>
 		/// </summary>