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1643.6.1
by Djellel E. Difallah
Added hook points and the interface for the Query Cache plugin |
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package drizzled.message; |
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option optimize_for = SPEED; |
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1812.2.1
by David Shrewsbury
Add options to proto files for use when generating Java source files. |
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option java_package = "org.drizzle.messages"; |
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option java_outer_classname = "ResultSetMessage"; |
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1643.6.1
by Djellel E. Difallah
Added hook points and the interface for the Query Cache plugin |
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import "table.proto"; |
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import "schema.proto"; |
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1643.6.3
by Djellel E. Difallah
Refactoring of the QC Plugin's interface methods, adding mutual exclusion mechanism between sessions to cache a query, Store Meta inoformation of all the tables and select fields of the query |
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/*
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* Some minimal information transferred in the header of Statement
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* submessage classes which identifies metadata about a specific
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* field involved in a Statemet.
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*/
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message FieldMeta |
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{
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required string field_name = 1; /* Name of the field */ |
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optional string field_alias = 2; |
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required string table_name = 3; |
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optional string table_alias = 4; |
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required string schema_name = 5; |
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}
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/*
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* Minimal information transferred in the header of Statement submessage
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* classes which identifies metadata about the schema objects being
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* modified in a Statement.
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*/
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message TableMeta |
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{
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required string schema_name = 1; /* Name of the containing schema */ |
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required string table_name = 2; /* Name of the table */ |
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optional string table_alias = 3; /* alias if defined */ |
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}
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1643.6.1
by Djellel E. Difallah
Added hook points and the interface for the Query Cache plugin |
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/*
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* Represents a single record being returned
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*
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* @note
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*
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* A ResultSet contains one or more SelectRecord submessages, each
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* of which represents a single record returned
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*/
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message SelectRecord |
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{
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repeated bytes record_value = 1; |
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1643.6.14
by Djellel E. Difallah
Added the Table Based Invalidation and its test suite |
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repeated bool is_null = 2; |
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1643.6.1
by Djellel E. Difallah
Added hook points and the interface for the Query Cache plugin |
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}
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message SelectHeader |
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{
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1643.6.3
by Djellel E. Difallah
Refactoring of the QC Plugin's interface methods, adding mutual exclusion mechanism between sessions to cache a query, Store Meta inoformation of all the tables and select fields of the query |
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repeated TableMeta table_meta = 1; /* Minimal metadata about the table affected */ |
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repeated FieldMeta field_meta = 2; /* Collection of metadata about fields affected */ |
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1643.6.1
by Djellel E. Difallah
Added hook points and the interface for the Query Cache plugin |
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}
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message SelectData |
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{
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required uint32 segment_id = 1; /* The segment number */ |
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required bool end_segment = 2; /* Is this the final segment? */ |
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repeated SelectRecord record = 3; /* The records inserted */ |
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}
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/*
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* The message is composed the hash of the query,
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* a header (SelectHeader) containing metadata about:
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* returned tables and fields.
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* One or more data * segments (SelectData) containing the actual records
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* being returned.
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*/
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message Resultset |
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{
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required string key= 1; /* contains a hashed value of: query + schema*/ |
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required string schema= 2; /*current schema */ |
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optional string sql = 3; /* May contain the original SQL string */ |
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optional SelectHeader select_header = 4; |
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optional SelectData select_data = 5; |
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}
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