query.h File Reference

#include "ts.h"

Data Structures
struct	qdb_point_result_t
	A variadic structure holding the result type as well as the result value. More...
struct	qdb_query_result_t
	Holds the result of a query. More...
struct	qdb_query_arrow_result_t
	Holds the result of a query in Arrow format. More...

Typedefs
typedef enum qdb_query_result_value_type_t	qdb_query_result_value_type_t
	The type of a result.
typedef struct qdb_dedup_handle_internal *	qdb_dedup_handle_t
	An opaque handle to internal API-allocated structures needed for deduplicating query results.
typedef struct qdb_query_cont_internal *	qdb_query_cont_handle_t
	An opaque handle to internal API-allocated structures needed for managing a continuous query.
typedef int	qdb_query_cont_callback_t (void *, qdb_error_t, const qdb_query_result_t *)
	A callback used by qdb_query_continuous. The first parameter of the callback will receive the context given when calling qdb_query_continuous The second parameter is the error result of the operation The third parameter are the new results for the query since the callback has been last called The callback MUST NOT throw exceptions. Throwing exceptions will terminate the program as exceptions cannot cross the C/C++ boundary. More...
typedef enum qdb_query_continuous_mode_type_t	qdb_query_continuous_mode_type_t
	The continuous query mode.

Enumerations
enum	qdb_query_result_value_type_t
	The type of a result.
enum	qdb_query_continuous_mode_type_t
	The continuous query mode.

Functions
QDB_API_LINKAGE qdb_error_t	qdb_query_find (qdb_handle_t handle, const char *query, const char ***aliases, size_t *alias_count)
	Retrieves all entries' aliases that match the specified find query. More...
QDB_API_LINKAGE qdb_error_t	qdb_query (qdb_handle_t handle, const char *query, qdb_query_result_t **result)
	Run the provided query and creates a table directory with the results. More...
QDB_API_LINKAGE qdb_error_t	qdb_query_copy_results (qdb_handle_t handle, const qdb_query_result_t *result, qdb_query_result_t **result_copy)
	Creates a deep copy of a query result. More...
QDB_API_LINKAGE qdb_error_t	qdb_query_to_arrow (qdb_handle_t handle, const qdb_query_result_t *result, qdb_query_arrow_result_t **result_copy)
	Copies a query result to the Arrow format. More...
QDB_API_LINKAGE qdb_error_t	qdb_init_query_dedup (qdb_handle_t handle, qdb_dedup_handle_t *dedup_handle)
	Creates a qdb_dedup_handle_t. More...
QDB_API_LINKAGE qdb_error_t	qdb_query_dedup (qdb_dedup_handle_t dedup_handle, const qdb_query_result_t *result, qdb_query_result_t **dedup_result)
	Deduplicates query results. More...
QDB_API_LINKAGE qdb_error_t	qdb_query_dedup_prune (qdb_dedup_handle_t dedup_handle, const qdb_ts_range_t *range)
	Removes previously seen rows from the given deduplication handler. More...
QDB_API_LINKAGE qdb_error_t	qdb_query_continuous (qdb_handle_t handle, const char *query, qdb_query_continuous_mode_type_t mode, unsigned int refresh_rate_ms, qdb_query_cont_callback_t cb, void *cb_context, qdb_query_cont_handle_t *cont_handle)
	Continuously and efficiently query the server with the given query. More...