DBZ-5526 Support JSON-based CHECK conditions

debezium-ddl-parser/src/main/antlr4/io/debezium/ddl/parser/oracle/generated/PlSqlParser.g4

@@ -1392,7 +1392,7 @@ out_of_line_constraint
           ( UNIQUE '(' column_name (',' column_name)* ')'
           | PRIMARY KEY '(' column_name (',' column_name)* ')'
           | foreign_key_clause
-          | CHECK '(' expression ')'
+          | CHECK '(' condition ')'
           )
        )
       constraint_state?
@@ -4238,6 +4238,12 @@ seed_part
 
 condition
     : expression
+    | json_condition
+    ;
+
+json_condition
+    : column_name IS NOT? JSON (FORMAT JSON)? (STRICT|LAX)? ((WITH|WITHOUT) UNIQUE KEYS)?
+    | JSON_EQUAL '(' expressions ')'
     ;
 
 expressions

debezium-ddl-parser/src/test/resources/oracle/examples/ddl_create.sql

@@ -271,6 +271,7 @@ CREATE TABLE "ET$xxxx"
     ( TYPE ORACLE_DATAPUMP DEFAULT DIRECTORY "DMPDP" ACCESS PARAMETERS ( DEBUG = (0 , 0) DATAPUMP INTERNAL TABLE "xxxx"."xxxx"  JOB ( "GGS","SYS_EXPORT_TABLE_01",1) WORKERID 1 PARALLEL 1 VERSION '11.2.0.0.0' ENCRYPTPASSWORDISNULL  COMPRESSION ENABLED  ENCRYPTION DISABLED  DBLINK 'TOPRD') LOCATION ('xxxx.dat') )  PARALLEL 1 REJECT LIMIT UNLIMITED
     AS SELECT /*+ PARALLEL(KU$,1) */ "MANDT", "WERKS", "MATNR", "GZEQUNR", "GZEQUNED", "MODNE", "NAME1", "MAKTX"
     FROM RELATIONAL("xxxx"."xxxx" @TOPRD NOT XMLTYPE) AS OF SCN 216399751091 KU$;
+CREATE TABLE "C##RCUSER"."JSON_TRANS" ( "ID" NUMBER(8,0) NOT NULL ENABLE, "TRANS_MSG" CLOB, CONSTRAINT "CHECK_JSON" CHECK (trans_msg is json) ENABLE, PRIMARY KEY ("ID") USING INDEX ENABLE, SUPPLEMENTAL LOG DATA (ALL) COLUMNS);
 -- Create index
 create index hr.name on hr.table (id,data) tablespace ts;
 create unique index idx_eshp_auction_file_history_id on eshp_auction_file_history(history_id);