Function ejdb_sys::ejdbsetindex

pub unsafe extern "C" fn ejdbsetindex(
    coll: *mut EJCOLL, 
    ipath: *const c_char, 
    flags: c_int
) -> bool

Set index for JSON field in EJDB collection.

• Available index types:

  • JBIDXSTR String index for JSON string values.
  • JBIDXISTR Case insensitive string index for JSON string values.
  • JBIDXNUM Index for JSON number values.
  • JBIDXARR Token index for JSON arrays and string values.

• One JSON field can have several indexes for different types.

• Available index operations:

  • JBIDXDROP Drop index of specified type. - Eg: flag = JBIDXDROP | JBIDXNUM (Drop number index)
  • JBIDXDROPALL Drop index for all types.
  • JBIDXREBLD Rebuild index of specified type.
  • JBIDXOP Optimize index of specified type. (Optimize the B+ tree index file)

Examples: - Set index for JSON path addressbook.number for strings and numbers: ejdbsetindex(ccoll, "album.number", JBIDXSTR | JBIDXNUM) - Set index for array: ejdbsetindex(ccoll, "album.tags", JBIDXARR) - Rebuild previous index: ejdbsetindex(ccoll, "album.tags", JBIDXARR | JBIDXREBLD)

Many index examples can be found in testejdb/t2.c test case.

@param coll Collection handle. @param ipath BSON field path. @param flags Index flags. @return