Hi 1) I was able to do the import by doing the following manipulation:
· Export table dev101 · Create an empty table dev102 · Export table dev102 · replace the _metadata file of dev101 with the _metadata file of dev102 · import table dev101 to table dev102 2) Another option is not to create dev102 in advance but let the import from dev101 to create it. After the import you can alter the table, e.g.: Alter table dev102 change column col2 col2 varchar(10); Dudu From: Devender Yadav [mailto:devender.ya...@impetus.co.in] Sent: Monday, May 30, 2016 2:38 PM To: user@hive.apache.org Subject: Does hive need exact schema in Hive Export/Import? Hi All, I am using HDP 2.3 - Hadoop version - 2.7.1 - Hive version - 1.2.1 I created a table dev101 in hive using create table dev101 (col1 int, col2 char(10)); I inserted two records using insert into dev101 values (1, 'value1'); insert into dev101 values (2, 'value2'); I exported data to HDFS using export table dev101 to '/tmp/dev101'; Then, I created a new table dev102 using create table dev102 (col1 int, col2 String); I imported data from `/tmp/dev10` in `dev102` using import table dev102 from '/tmp/dev101'; I got error: >FAILED: SemanticException [Error 10120]: The existing table is not compatible >with the import spec. Column Schema does not match Then I created another table `dev103` using create table dev103 (col1 int, col2 char(50)); Again imported: import table dev103 from '/tmp/dev101'; Same error: >FAILED: SemanticException [Error 10120]: The existing table is not compatible >with the import spec. Column Schema does not match Finally, I create table with **exactly same schema** create table dev104 (col1 int, col2 char(10)); And imported import table dev104 from '/tmp/dev101'; Imported Successfully. Does hive need exact schema in Hive Export/Import? Regards, Devender ________________________________ NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
