SAP HANA - Dynamic SQL for altering table causes run time error

Hello Experts,

I am trying dynamic SQL to add partition to a non partitioned table. I am doing this in a hana procedure because i want to iterate over all schemas and add partition to the target table in all schemas in my system. I am doing following query in my procedure

EXECUTE IMMEDIATE 'ALTER TABLE ' || :SCHEMA_NAME || '.TARGET_TABLE PARTITION BY RANGE (TARGET_TYPE_ID) (PARTITION VALUE = 1, PARTITION VALUE = 2,PARTITION VALUE = 3, PARTITION VALUE = 4, PARTITION OTHERS)';

But the procedure execution fails with the following error

Could not execute 'CALL PARTITION_TARGET_TABLE('SUREN_TEST')' in 1.160 seconds .

[129]: transaction rolled back by an internal error:  [129] "SUREN_TEST"."PARTITION_TARGET_TABLE": line 53 col 3 (at pos 2173): [129] (range 3)

The same query works fine if i execute directly on a particular schema. It fails if execute it as  dynamic SQL. What could be the reasons for this error?

Thanks,

Suren.