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.TH "MONGOC_COLLECTION_DROP_INDEX_WITH_OPTS" "3" "Feb 23, 2019" "1.14.0" "MongoDB C Driver"
.SH NAME
mongoc_collection_drop_index_with_opts \- mongoc_collection_drop_index_with_opts()
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.SH SYNOPSIS
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.INDENT 3.5
.sp
.nf
.ft C
bool
mongoc_collection_drop_index_with_opts (mongoc_collection_t *collection,
                                        const char *index_name,
                                        const bson_t *opts,
                                        bson_error_t *error);
.ft P
.fi
.UNINDENT
.UNINDENT
.SH PARAMETERS
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.IP \(bu 2
\fBcollection\fP: A \fBmongoc_collection_t\fP\&.
.IP \(bu 2
\fBindex_name\fP: A string containing the name of the index.
.IP \(bu 2
\fBerror\fP: An optional location for a \fBbson_error_t\fP or \fBNULL\fP\&.
.UNINDENT
.sp
\fBopts\fP may be NULL or a BSON document with additional command options:
.INDENT 0.0
.IP \(bu 2
\fBwriteConcern\fP: Construct a \fBmongoc_write_concern_t\fP and use \fBmongoc_write_concern_append\fP to add the write concern to \fBopts\fP\&. See the example code for \fBmongoc_client_write_command_with_opts\fP\&.
.IP \(bu 2
\fBsessionId\fP: First, construct a \fBmongoc_client_session_t\fP with \fBmongoc_client_start_session\fP\&. You can begin a transaction with \fBmongoc_client_session_start_transaction\fP, optionally with a \fBmongoc_transaction_opt_t\fP that overrides the options inherited from \fBcollection\fP, and use \fBmongoc_client_session_append\fP to add the session to \fBopts\fP\&. See the example code for \fBmongoc_client_session_t\fP\&.
.IP \(bu 2
\fBcollation\fP: Configure textual comparisons. See Setting Collation Order, and \fI\%the MongoDB Manual entry on Collation\fP\&. Collation requires MongoDB 3.2 or later, otherwise an error is returned.
.IP \(bu 2
\fBserverId\fP: To target a specific server, include an int32 "serverId" field. Obtain the id by calling \fBmongoc_client_select_server\fP, then \fBmongoc_server_description_id\fP on its return value.
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.SH DESCRIPTION
.sp
This function requests than an index on \fBcollection\fP be dropped.
.sp
If no write concern is provided in \fBopts\fP, the collection\(aqs write concern is used.
.SH ERRORS
.sp
Errors are propagated via the \fBerror\fP parameter.
.SH RETURNS
.sp
Returns \fBtrue\fP if successful. Returns \fBfalse\fP and sets \fBerror\fP if there are invalid arguments or a server or network error.
.SH AUTHOR
MongoDB, Inc
.SH COPYRIGHT
2017-present, MongoDB, Inc
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