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int _is_r_sym(char *sym);
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int _is_r_sym(char *sym);
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int _file_exists(char *filename);
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int _file_exists(char *filename);
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int _sdf_exists2(char *iname);
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int _sdf_exists2(char *iname);
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/* sdf utilities */
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/* sdf utilities */
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int USE_SDF(const char *iname, int exists);  /* call this before doing anything on an SDF */
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int USE_SDF1(const char *iname, int exists);  /* call this before doing anything on an SDF */
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SEXP _create_sdf_sexp(const char *iname);  /* create a SEXP for an SDF */
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SEXP _create_sdf_sexp(const char *iname);  /* create a SEXP for an SDF */
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int _add_sdf1(char *filename, char *internal_name); /* add SDF to workspace */
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int _add_sdf1(char *filename, char *internal_name); /* add SDF to workspace */
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void _delete_sdf2(const char *iname); /* remove SDF from workspace */
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void _delete_sdf2(const char *iname); /* remove SDF from workspace */
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int _get_factor_levels1(const char *iname, const char *varname, SEXP var);
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int _get_factor_levels1(const char *iname, const char *varname, SEXP var);
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int _get_row_count2(const char *table);
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int _get_row_count2(const char *table, int quote);
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SEXP _get_rownames(const char *sdf_iname);
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SEXP _get_rownames(const char *sdf_iname);
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char *_get_full_pathname2(char *relpath); /* get full path given relpath, used in workspace mgmt */
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char *_get_full_pathname2(char *relpath); /* get full path given relpath, used in workspace mgmt */
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/* utilities for creating SDF's */
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/* utilities for creating SDF's */
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char *_create_sdf_skeleton2(SEXP name, int *o_namelen);
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char *_create_sdf_skeleton1(SEXP name, int *o_namelen);
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int _copy_factor_levels2(const char *factor_type, const char *iname_src,
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        const char *colname_src, const char *iname_dst, const char *colname_dst);
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/* R utilities */
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/* R utilities */
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SEXP _getListElement(SEXP list, char *varname);
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SEXP _getListElement(SEXP list, char *varname);
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SEXP _shrink_vector(SEXP vec, int len); /* shrink vector size */
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SEXP _shrink_vector(SEXP vec, int len); /* shrink vector size */
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int _expand_buf(int i, int size);  /* expand ith buf if size > buf[i].size */
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int _expand_buf(int i, int size);  /* expand ith buf if size > buf[i].size */
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/* sqlite.vector utilities */
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/* sqlite.vector utilities */
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SEXP sdf_get_variable(SEXP sdf, SEXP name);
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SEXP sdf_get_variable(SEXP sdf, SEXP name);
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SEXP sdf_detach_sdf(SEXP internal_name);
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/* misc utilities */
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/* misc utilities */
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char *_r2iname(char *internal_name, char *filename);
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char *_r2iname(char *internal_name, char *filename);
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char *_fixname(char *rname);
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char *_fixname(char *rname);
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/* detail constants (see _get_sdf_detail2 in sqlite_workspace.c) */
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/* detail constants (see _get_sdf_detail2 in sqlite_workspace.c) */
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#define SDF_DETAIL_EXISTS 0
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#define SDF_DETAIL_EXISTS 0
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#define SDF_DETAIL_FULLFILENAME 1
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#define SDF_DETAIL_FULLFILENAME 1
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/* R SXP type constants */
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#define FACTORSXP 11
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#define ORDEREDSXP 12
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#ifndef __SQLITE_WORKSPACE__
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#ifndef __SQLITE_WORKSPACE__
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extern sqlite3 *g_workspace;
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extern sqlite3 *g_workspace;
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extern char *g_sql_buf[NBUFS];
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extern char *g_sql_buf[NBUFS];
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extern int g_sql_buf_sz[NBUFS];
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extern int g_sql_buf_sz[NBUFS];
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#endif
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#endif