pitrou commented on code in PR #38385:
URL: https://github.com/apache/arrow/pull/38385#discussion_r1388055277
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format/FlightSql.proto:
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@@ -1778,6 +1794,47 @@ message CommandPreparedStatementUpdate {
bytes prepared_statement_handle = 1;
}
+/*
+ * Represents a bulk ingestion request. Used in the command member of
FlightDescriptor
+ * for the the RPC call DoPut to cause the server load the contents of the
stream's
+ * FlightData into the target destination.
+ */
+message CommandStatementIngest {
+ option (experimental) = true;
+
+ // Describes the behavior for loading bulk data.
+ enum IngestMode {
+ // Ingestion behavior unspecified.
+ INGEST_MODE_UNSPECIFIED = 0;
+ // Create the target table. Fail if the target table already exists.
+ INGEST_MODE_CREATE = 1;
+ // Append to an existing target table. Fail if the target table does not
exist.
+ INGEST_MODE_APPEND = 2;
+ // Drop the target table if it exists. Then follow INGEST_MODE_CREATE
behavior.
+ INGEST_MODE_REPLACE = 3;
+ // Create the target table if it does not exist. Then follow
INGEST_MODE_APPEND behavior.
+ INGEST_MODE_CREATE_APPEND = 4;
+ }
+
+ // The ingestion behavior.
+ IngestMode mode = 1;
+ // The table to load data into.
+ string table = 2;
+ // The db_schema of the destination table to load data into. If unset, a
backend-specific default may be used.
+ optional string schema = 3;
+ // The catalog of the destination table to load data into. If unset, a
backend-specific default may be used.
+ optional string catalog = 4;
+ // Use a temporary table.
+ optional bool temporary = 5;
Review Comment:
Ah! Is this supposed to mean that _if a new table is created for ingestion_,
then the table is made temporary?
The comment is very confusing. I thought it meant that the ingestion was
first done into a temporary table, then committed into the actual result table.
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