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Make PREPARE operation explicit

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The operation of the statement to be prepared is no longer
reported as the operation of the PREPARE statement.

Instead, when the type of the statement is
QUERY_TYPE_PREPARE_NAMED_STMT, the operation can be obtained
using qc_get_prepare_operation().

The qc_mysqlembedded implementation will be provided in a
subsequent commit.
This commit is contained in:
Johan Wikman
2016-10-31 13:38:18 +02:00
parent 8c20ad5cd0
commit 91e36ecaed
4 changed files with 93 additions and 3 deletions
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12
include/maxscale/query_classifier.h
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@ -116,6 +116,7 @@ typedef struct query_classifier
char* (*qc_get_affected_fields)(GWBUF* stmt);
char** (*qc_get_database_names)(GWBUF* stmt, int* size);
char* (*qc_get_prepare_name)(GWBUF* stmt);
qc_query_op_t (*qc_get_prepare_operation)(GWBUF* stmt);
} QUERY_CLASSIFIER;
/**
@ -285,6 +286,17 @@ qc_query_op_t qc_get_operation(GWBUF* stmt);
*/
char* qc_get_prepare_name(GWBUF* stmt);
/**
* Returns the operator of the prepared statement, if the statement
* is a PREPARE statement.
*
* @param stmt A buffer containing a COM_QUERY packet.
*
* @return The operator of the prepared statement, if the statement
* is a PREPARE statement; otherwise QUERY_OP_UNDEFINED.
*/
qc_query_op_t qc_get_prepare_operation(GWBUF* stmt);
/**
* Returns the tables accessed by the statement.
*